The first DC Comic Treasury sized comic came out in Christmas 1972 called Rudolph The Red Nosed Reindeer - this is the rarest of all treasuries

DC and Marvel would heavily promote this format from 1973-1983 when likely rising costs and sinking sales brought it to an end.

Issue C-26 1974 Add/replace cover	Issue C-28 1974 Add/replace cover	Issue C-30 1974 Add/replace cover	Issue F-4 October-November 1974 Add/replace cover	Issue F-6 (F-5) February-March 1975 Add/replace cover
Issue F-6 April-May 1975 Add/replace cover	Issue F-7 June-July 1975 Add/replace cover	Issue F-8 August-September 1975 Add/replace cover	Issue C-61 [March] 1979 Add/replace cover	Issue C-61 [March] 1979 Add/replace cover

Issue [C-20] Christmas 1972 Add/replace cover	Issue C-21 Summer 1973 Add/replace cover	Issue C-22 Fall 1973 Add/replace cover	Issue C-23 Winter 1973 Add/replace cover	Issue C-24 Add/replace cover
Issue C-25 1974 Add/replace cover	Issue C-27 1974 Add/replace cover	Issue C-29 1974 Add/replace cover	Issue C-31 October-November 1974 Add/replace cover	Issue C-32 December 1974-January 1975 Add/replace cover
Issue C-33 February-March 1975 Add/replace cover	Issue C-34 February-March 1975 Add/replace cover	Issue C-35 April-May 1975 Add/replace cover	Issue C-36 June-July 1975 Add/replace cover	Issue C-37 August-September 1975 Add/replace cover
Issue C-38 October-November 1975 Add/replace cover	Issue C-39 October-November 1975 Add/replace cover	Issue C-40 December 1975-January 1976 Add/replace cover	Issue C-41 December-January 1975-1976 Add/replace cover	Issue C-42 February-March 1976 Add/replace cover
Issue C-43 February-March 1976 Add/replace cover	Issue C-44 June-July 1976 Add/replace cover	Issue C-45 June-July 1976 Add/replace cover	Issue C-46 August-September 1976 Add/replace cover	Issue C-47 August-September 1976 Add/replace cover
Issue C-48 1976 Add/replace cover	Issue C-49 October-November 1976 Add/replace cover	Issue C-50 Christmas 1976 Add/replace cover	Issue C-51 August 1977 Add/replace cover	Issue C-52 1977 Add/replace cover
Issue C-57 1978 Add/replace cover	Issue C-59 1978 Add/replace cover