I heard John Hodgman use it on his podcast and thought it was a funny way to communicate that I'm just not interested in that category of entertainment. I find it works for all televised sporting leagues in the US. I use it mostly when people try to talk with me about sports at work.

"Did you see last night's game?"

"Were they playing sportsball again last night?"

"Oh yeah, you don't watch sports"

This conversation works without me having to know which sport is in season.