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Did Jackie Gleason work for a network?
Jackie Gleason did two Jackie Gleason Show specials for CBS after giving up his regular show in the 1970s
What specials did Jackie Gleason do for CBS after giving up his regular show in the 1970s?
Jackie Gleason's specials included Honeymooners segments and a Reginald Van Gleason III sketch in which the gregarious millionaire was portrayed as an alcoholic
What other special did Jackie Gleason do besides Honeymooners segments and a Reginald Van Gleason III sketch?
Jackie Gleason later did a series of Honeymooners specials for ABC
Who did Gleason do a series of Honeymooners specials for?
Jackie Gleason hosted four ABC specials during the mid-1970s

Question: What did he do after that?
Self-contained rewrite: What did Jackie Gleason do after hosting four ABC specials?