Director:
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1. The Mary Tyler Moore Show (1970), series
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2. The Bob Newhart Show (1972), series
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3. Rhoda (1974), series
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4. Laverne DeFazio & Shirley Feeney (1976), series
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5. Taxi (1978), series
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6. Partners (1982), film
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7. Cheers (1982), series
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8. Night Court (1984), series
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9. Valerie's Family: The Hogans (1986), series
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10. Dear John (1988), series
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11. Wings (1990), series
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12. Frasier (1993), series
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13. Friends (1994), series
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14. NewsRadio (1995), series
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15. Caroline (1995), series
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16. 3rd Rock from the Sun (1996), series
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17. Dharma and Greg (1997), series
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18. Will & Grace (1998), series
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19. Two and a Half Men (2003), series
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20. Back to You (2007), series
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21. The Big Bang Theory (2007), series
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22. Hank (2009), series
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23. Mike & Molly (2010), series
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24. 2 Broke Girls (2011), series
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25. Up All Night (2011), series
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26. Partners (2012), series
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27. The Millers (2013), series
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28. Sean Saves the World (2013), series
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29. Friends with Better Lives (2014), series
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30. Man with a Plan (2016), series
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31. The Neighborhood (2018), series
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34. B Positive (2020), series
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36. Frasier (2023), series
Voice:
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1. Being Mary Tyler Moore (2023), film...Self
Actor:
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1. Cheers (1982), series...Self
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2. The Crash (2013), series
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3. Love, Lies & Records (2017), series...Simon Armitage 6 episodes, 2017
Writer:
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1. Cheers (1982), series...(created by)