I think 20% may be on the high side. Somwehere between 15 and 20%. And of that 15 to 20%, most of those games are only partial watches. I can't remember the last college football game I watched from start to finish. Probably the national title game last year. Baseball? Used to watch a lot more games but the 3 outcome approach is destroying the game. NBA was never a percentage, esp in regular season. College bball probably the highest % of full games watched. NFL probably in second.