I've always loved the Marx Brothers. When I was a young teen I read everything about them I could get my hands on. (Well, there were no VCRs, so I couldn't collect their movies.) My favorite Halloween costume was Harpo, and I played fair---I wouldn't speak.
Bill Marx, one of Harpo's sons, had a traveling act in the 1980s. He played the piano, and his partner played the harp, and Bill talked about Harpo. I brought along a 1st-edition copy of "Harpo Speaks" for him to sign, and he wanted me to stick around to talk after the autograph line finished, but my ride was leaving (I didn't have a license yet) and I couldn't stay. I've always regretted that.
For a few years, a local TV station would run a Marx Brothers marathon on New Year's Eve, from about 5 p.m. till past midnight. My parents would go to a card party, my brother would go to my grandparents, and for one night in the year I had the TV to myself and all the Marx Brothers I could handle! Those were great evenings.
I agree that their movies aren't on TV often enough. The next generations won't have a chance to discover them. At least all their movies have been released on DVD.