“The Burns and Allen Show” unfortunately has never been officially released on dvd. That is, the 1952-58 lifespan of the series, when it was filmed by Screen Gems. The tv-series was done live the previous two years (1950-52), but about a dozen or so kinescopes of those episodes do circulate quite commonly.
Also of note, you can find quite a few of Burns and Allen’s 1930s Paramount features on dvd. Films like “Six of a Kind” (1934), “Love in Bloom” (1935) and such. “International House” (1933) is available on a WC Fields set, and I think “College Swing” (1938) is on a Bob Hope themed disc.
What about Flip Wilson or Milton Berle?
That show is on Antenna TV channel Mondays, 2 episodes from 5 till 5 AM.