Just about anything you watch can be considered "lowbrow entertainment". I can tell you however that I watch football at a much different level than I do any movie or tv show, or just about any other sport.
I watch USF football with my Father in Law and we are dissecting the game as we watch...paying attention to schemes, formations, game plans, etc and discussing these topics. I am sure there are lots of people out there and on this board that do the same. So in a way I would say I am a more sophisticated football fan than not.
And as OBSESSED you are about CJL, you must watch at some level of sophistication......or not.