After a week with my parents, I think they're living in a groundhog day existence. They have the same things every week for food. (Monday fish, Tuesday pie, Wednesday stew etc etc). They have been on holiday to the same apartments on the same Greek island every year for about 20 years. Suggestion of a lovely hotel on another island was met with "Oh not Kos! We're Crete people!!" Inlaws the same - you can predict what meal FIL will have whenever we're out as he always has steak. And MIL always has salmon. SIL watches episodes of Friends constantly - she must have seen them all 20 times or more.
Why on earth would you want to watch TV programmes over and over, especially when there is SO much on telly to watch? OK, you might start watching a Scand-noir and decide it's not for you but you've not lost anything by trying. Do your homework on resorts and you'll find dozens (or hundreds) of little Greek fishing villages just as nice as the one you always go to. Is there anything less interesting than having such a rigid schedule that you know instantly what you'll be eating months in advance?
This is also partly what I dislike about Christmas. The telly, food, music, decorations, events are the same year after year and it's BORING. I would love to piss off somewhere where they don't celebrate Christmas just for a change.