I (63F) spend a silly amount of time looking up actors I see on the old TV shows and old movies on TCM. Sometimes I can come up with the name but need to remember where else I've seen them, and sometimes they're such an "insignificant" actor, at that time, they don't appear in the credits of the show. Then I have to click open every "uncredited" actor in the IMDb list to find who they are and where I've seen them before.
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