To Watch Tonight

What to watch after voting for a Schmuck ... • MLB: Cubs at Brewers (8 p.m., ET). Fire up the 12-person beer bong. [WGN] • MLB: Diamondbacks at Padres (10:10 p.m., ET). ComicCon moves out of town, Padres move back in. [FSN] [Channel 4 Padres] • Documentary: City on Fire, The Story of the '68 Detroit Tigers (7 p.m.). Why not rent Tiger Town as well and make a night of it? [HBO]