An Attitude I Hope Fades With Time...
Is actors being dismissive of stuff based on its genre or style.
Some examples that spring to mind are John Laurie bitterly saying of Dad's Army "I was the best Hamlet of the 20s but now I'm famous for being in this crap", and Harry Landis giving a backhanded compliment to Friday Night Dinner by starting with "It's not Chekhov but for its type...".
It feels like pure snobbery frankly. So what if something is farce, or has dragons and magic in it? The question is if it's good on its own merits. A piece of comedy isn't suddenly rendered worthless because it gets a laugh by someone falling down a flight of stairs.
Luckily there are older actors like Derek Jacobi and Ian McKellen who do stuff like studio sitcoms and soap operas because they genuinely want to, but it feels like a lot of their generation still has this mindset where only the superficially 'worthy' stuff has cultural value.