 The Celebrity Roasts were heavily scripted and represented the last  gasp of the venerable _"Dean Martin Show, The" (1965)_ (qv), which  began on NBC in 1965. The first deviation from Martins variety  format began in the ninth season, when Hugh M. Hefner (qv) was  "roasted". The roast format consumed the show in the tenth season,  but as the season progressed Martin, never overworked, seemed  stressed with personal problems related to marriage with Kathy Hawn  (they divorced in 1976). Many "reaction" shots of Martin on the  later roasts would actually be edited from earlier roasts  (relatively easy due to him wearing a trademark tuxedo). The last  roastee would be Michael Landon (qv), an encore appearance.