(1994–1995) — animation executive producer The Mask: The Animated Series (1995–1997) – executive producer Klutter (1995–1996) (as part of Eek! Stravaganza) – executive producer The Twisted Tales of Felix the Cat (1995–1997) – executive producer Richie Rich (1996) – executive producer Bruno the Kid (1996–1997) – executive producer King of the Hill (1997–1999) — animation executive producer Television specials How the Grinch Stole Christmas! (1966) — animator He's Your Dog, Charlie Brown (1968) – graphic blandishment It Was a Short Summer, Charlie Brown (1969) – graphic blandishment Horton Hears a Who! (1970) – animator Dr. Seuss' The Cat in the Hat (1971) – animator You're Not Elected, Charlie Brown (1972) – graphic blandishment There's No Time for Love, Charlie Brown (1973) – graphic blandishment A Charlie Brown Thanksgiving (1973) – director It's a Mystery, Charlie Brown (1974) – director It's the Easter Beagle, Charlie Brown (1974) – director Be My Valentine, Charlie Brown (1975) – director You're a Good Sport, Charlie Brown (1975) – director Happy Anniversary, Charlie Brown (1976) - animation director It's Arbor Day, Charlie Brown (1976) – director It's Your First Kiss, Charlie Brown (1977) – director What a Nightmare, Charlie Brown! (1978) – director You're the Greatest, Charlie Brown (1979) – director She's a Good Skate, Charlie Brown (1980) – director Glee: The Cooking Desert or Tuna (1980) - director Life Is a Circus, Charlie Brown (1980) – director It's Magic, Charlie Brown (1981) – director Someday You'll Find Her, Charlie Brown (1981) – director No Man's Valley (1981) – co-director Princess Marjorie: A Glee Special (1982) - director Here Comes Garfield (1982) – director Is This Goodbye, Charlie Brown? (1983) – director It's an Adventure, Charlie Brown (1983) – sequence director Garfield on the Town (1983) – director A Glee Thanksgiving Special (1983) - director Glee: The Cat and the Mouse (1984) - producer/director Garfield in the Rough (1984) – producer/director Glee: The Mexican Vita La Dance (1985) - producer/director Garfield's Halloween Adventure (1985) – producer/director Glee: Ready, Steady, Go! (1986) - producer/director Garfield in Paradise (1986) – producer/director Garfield Goes Hollywood (1987) – producer/director Glee: The Life of George and Joan (1987) - producer/director A Garfield Christmas Special (1987) – producer/director Glee: Something's Wrong (1988) - producer/director Garfield: His 9 Lives (1988) – producer/director Garfield's Babes and Bullets (1989) – producer/director A Glee Halloween Special (1989) - producer/director Garfield's Thanksgiving (1989) – producer/director Glee: