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| Title | Year | Status | Character |
|---|
| Ferdinand | 2017 | writer: "Top of the World" post-production |
| The Tonight Show Starring Jimmy Fallon | TV Series writer - 1 episode, 2017 lyrics - 1 episode, 2016 |
| Tu cara me suena | 2017 | TV Series writer - 1 episode |
| Strictly Come Dancing | 2016 | TV Series writer - 1 episode |
| Gilmore Girls: A Year in the Life | 2016 | TV Mini-Series writer - 1 episode |
| Who's Doing the Dishes? | 2016 | TV Series writer - 1 episode |
| Sounds of the 80s | 2016 | TV Series writer - 1 episode |
| The Do-Over | 2016 | writer: "Crazy for You" |
| Vinyl | 2016 | TV Series writer - 1 episode |
| The Voice Kids | 2014 | TV Series writer - 2 episodes |
| The Skeleton Twins | 2014 | writer: "As Long As We Got Each Other" |
| Vespre a la 2 | 2013 | TV Series writer - 1 episode |
| The Voice of the Philippines | 2013 | TV Series writer - 2 episodes |
| Levenslied | TV Series lyrics - 1 episode, 2013 music - 1 episode, 2013 |
| Twenty Feet from Stardom | 2013 | Documentary writer: "As Long As We've Got Each Other" |
| Dark Shadows | 2012 | writer: "Top of the World" |
| Glee | 2012 | TV Series writer - 1 episode |
| Em dónes vida. El llibre i el disc de La Marató | 2011 | TV Movie documentary writer: "Sentir l'eternitat" |
| Raising Hope | 2011 | TV Series writer - 1 episode |
| Idool 2011 | 2011 | TV Series writer - 1 episode |
| The X Factor | 2004-2010 | TV Series writer - 4 episodes |
| Shrek Forever After | 2010 | writer: "Top of the World" |
| Live from Studio Five | 2009 | TV Series writer - 1 episode |
| This Is It | 2009 | Documentary writer: "Human Nature" |
| Madonna: Celebration - The Video Collection | 2009 | Video writer: "Crazy for You" |
| Tsuma yo! Matsumoto sarin jiken: Hannin to yobarete... Kazoku wo mamori nuita 15 nen | 2009 | TV Movie documentary writer: "Top of the World", "Yesterday Once More" - uncredited |
| Miss Austria 2009 | 2009 | TV Series documentary writer - 1 episode |
| Idols | 2002-2009 | TV Series writer - 2 episodes |
| Cellule identité | 2008 | TV Series writer - 1 episode |
| It Takes Two | 2008 | TV Series lyrics - 1 episode |
| Idol | 2006 | TV Series writer - 1 episode |
| Australian Idol | 2006 | TV Series writer - 1 episode |
| The Fast and the Furious: Tokyo Drift | 2006 | writer: "Top of the World" |
| Big Love | 2006 | TV Series writer - 1 episode |
| American Idol | 2005-2006 | TV Series writer - 2 episodes |
| Canadian Idol | 2005 | TV Series writer - 1 episode |
| Independent Lens | 2003-2005 | TV Series documentary writer - 2 episodes |
| Idool 2004 | 2004 | TV Series writer - 1 episode |
| Singapore Idol | 2004 | TV Series writer - 1 episode |
| Malaysian Idol | 2004 | TV Series writer - 1 episode |
| 13 Going on 30 | 2004 | writer: "Crazy for You" |
| Cesko hledá SuperStar | 2004 | TV Series writer - 2 episodes |
| Double Dare | 2004 | Documentary writer: "Top Of The World" |
| New Zealand Idol | 2004 | TV Series writer - 1 episode |
| Nouvelle Star | 2003 | TV Series writer - 1 episode |
| Living with Michael Jackson: A Tonight Special | 2003 | TV Special documentary writer: "Human Nature" |
| Deutschland sucht den Superstar | 2002 | TV Series writer - 1 episode |
| The Practice | 2002 | TV Series writer - 1 episode |
| Jos sais kerran | 2002 | TV Series writer - 1 episode |
| Pop Idol | 2001 | TV Series writer - 2 episodes |
| Will & Grace | 2000 | TV Series writer - 1 episode |
| 38 Special: Live at Sturgis | 1999 | Video documentary writer: "Like No Other Night" |
| Regine: R2K | 1999 | Video documentary writer: "One Love" |
| The Parent Trap | 1998 | writer: "Top Of The World" |
| Close to You: Remembering the Carpenters | 1997 | TV Movie documentary writer: "Yesterday Once More", "Goodbye To Love", "Top Of The World", "Only Yesterday" |
| Annabelle's Wish | 1997 | Video writer: "The World From Way Up Here", "Friends Like Us", "Tiny Dreamer Music Box Theme", "If You Believe", "There's No Place Like Home", "The World From Way Up Here Reprise" |
| The Simpsons | 1997 | TV Series 1 episode |
| High School High | 1996 | writer: "Top Of The World" |
| Sounds of the Eighties | 1996 | TV Series writer - 1 episode |
| Grand Ole Opry 70th Anniversary | 1996 | TV Special writer: "Heartland" |
| Bat Yam - New York | 1996 | TV Series lyrics - 2 episodes |
| The Last Supper | 1995/I | writer: "Top Of The World" |
| Friends | 1994 | TV Series writer - 1 episode |
| S.F.W. | 1994 | writer: "As Long As We Got Each Other" |
| Free Willy | 1993 | writer: "Right Here Human Nature Remix" |
| Voyage | 1993 | TV Movie writer: "Yesterday Once More" |
| Pure Country | 1992 | writer: "HEARTLAND" |
| American Heart | 1992 | writer: "Slow Hand" |
| Road to Alice | 1992 | Short writer: "Top Of The World" |
| Stars in Their Eyes | 1992 | TV Series writer - 1 episode |
| The Last Boy Scout | 1991 | writer: "Friday Night's A Great Time For Football" |
| Curly Sue | 1991 | writer: "You'll Never Know" |
| Showdown in Little Tokyo | 1991 | writer: "Slow Hand" |
| Mannequin: On the Move | 1991 | lyrics: "Can't Believe My Eyes" / music: "Can't Believe My Eyes" |
| The 63rd Annual Academy Awards | 1991 | TV Special writer: "Promise Me You'll Remember" |
| The Godfather: Part III | 1990 | lyrics: "PROMISE ME YOU'LL REMEMBER" |
| The Spirit of '76 | 1990 | writer: "Top Of The World" |
| Uncle Buck | 1990 | TV Series writer: "Uncle Buck" |
| Star Trek V: The Final Frontier | 1989 | lyrics: "The Moon's a Window to Heaven" |
| Listen to Me | 1989 | writer: "Who's Gonna Love You Tonight?" |
| Say Anything... | 1989 | writer: "All For Love" |
| Spijkerhoek | 1989 | TV Series lyrics - 1 episode |
| The Karen Carpenter Story | 1989 | TV Movie writer: "Eve", "Top of the World" |
| Moonwalker | 1988 | writer: "Human Nature" |
| Empty Nest | 1988 | TV Series writer: "LIFE GOES ON" |
| Cocktail | 1988 | writer: "Wild Again" |
| Growing Pains | 1987-1988 | TV Series writer - 4 episodes |
| Johnny Be Good | 1988 | writer: "Perfect Stranger" |
| Back to the Beach | 1987 | "Some Things Live Forever" |
| Emu's Wide World | 1987 | TV Series writer - 1 episode |
| Ratboy | 1986 | writer: "Pretty Face", "Tangled Up in You" |
| The Men's Club | 1986 | lyrics: "A Fool for Love" |
| Nothing in Common | 1986 | writer: "Loving Strangers" - as Jon Bettis |
| Madonna Live: The Virgin Tour | 1985 | Video documentary writer: "Crazy for You" |
| Top of the Pops | 1981-1985 | TV Series writer - 2 episodes |
| National Lampoon's European Vacation | 1985 | lyrics: "New Looks" |
| Just One of the Guys | 1985 | writer: "Slow Hand" - uncredited |
| Madonna: Crazy for You | 1985 | Video short writer: "Crazy For You" |
| Vision Quest | 1985 | lyrics: "Crazy For You" |
| Carpenters: Yesterday Once More | 1985 | Video writer: "Those Good Old Dreams", "Top Of The World", "Only Yesterday" |
| Oh, God! You Devil | 1984 | lyrics: "If It Was Only Up To Me", "Dangerous Eyes" |
| Body Rock | 1984 | writer: "Body Rock" |
| Automan | 1984 | TV Series writer - 1 episode |
| The Lonely Guy | 1984 | lyrics: "Love Comes Without Warning" |
| Twilight Zone: The Movie | 1983 | lyrics: "NIGHTS ARE FOREVER" |
| Chicken Ranch | 1983 | Documentary writer: "Slow Hand" - uncredited |
| Partners | 1982 | writer: "Slow Hand" - as M. Clark & J. Bettis |
| Taps | 1981/I | writer: "Slow Hand" |
| WKRP in Cincinnati | 1981 | TV Series writer - 1 episode |
| The Carpenters: Music, Music, Music | 1980 | TV Special writer: "Someday" |
| Carpenters Very First Television Special | 1976 | TV Special lyrics: "Sing / Close To You / For All We Know / Ticket To Ride / Only Yesterday / I Won't Last A Day Without You / Goodbye To Love" - Hits Medley '76 / writer: "Top Of The World" |
| The Sonny and Cher Show | 1976 | TV Series writer - 1 episode |
| The Ernie Sigley Show | 1974-1975 | TV Series writer - 3 episodes |
| The Perry Como Christmas Show | 1974 | TV Special lyrics: "They Long to Be Close to You/It's Impossible/We've Only Just Begun/And I Love You So/Don't Let the Stars Get in Your Eyes/Yesterday Once More" |
| The Benny Hill Show | 1974 | TV Series writer - 1 episode |
| The Graham Kennedy Show | 1972-1973 | TV Series writer - 3 episodes |
| Sez Les | 1973 | TV Series writer - 1 episode |