When I first met DH we went to his parents and they sparked up this weird conversation about Goldie Hawn, went on about how much they all love her and started reminiscing about her various films, roles, characters, interviews etc. They then put in a Goldie Hawn film which we had to sit and watch and laughed manically throughout. DH was going along with this and acting the same.
This obsession has continued throughout our relationship and I find it weird and boring!!
Last night we popped to his parents for something and again the Goldie Hawn subject came up. DH was actively encouraging it and waffling on about his favourite GH film.
When we got home last night we sat down to TV and he starts putting on a GH film. I said "I don't want to watch this tonight, I just want to relax with a bit of telly" so he turned to me, smiled and pressed play!!! I said "well if you're watching this I'm going to bed to watch TV up there". He replied "I'm going to come up there and put "her" on your TV too". 
not thinking he was being serious I replied "yeah right" and went upstairs. I set the TV up, went to toilet and when I came back in the bedroom he was frantically trying to get the film on that TV! I said "look I'm tired and not in the mood for messing about so just put the tv back onto the channel I'd set it on". He smiled at me again (one of those "look how misheivous I am" exagurated smiles) and carried on trying to get the film to work. At this point I shouted at him and said "will you just fuck off with this Goldie Hawn shit? It's not funny, it's not cute, it's fucking boring. Nobody else cares about shit like this, it's boring".
He got all defensive and said "fine I'll leave you on your own" and he went off to watch the shit 100 year old film downstairs laughing like a loon every 5 minutes.
I can't be doing with it!! It's fucking weird and pointless. How do I tell them I don't want to hear about it anymore without sounding like a total killjoy?