I think they have major NHL games, and I believe they get NASCAR (in the form of races from the Cup Series, Xfinity Series, K&N Pro Series, Whelen Modified Tour, and Toyota Series). They also get Indy Car, The Open Championship (golf), the Tour De France (tennis) the French Open (tennis), Formula One, and of course, the Summer Olympics every 4 years.
FOX Sports airs MLB games, I think the US Open (the golf one), and a ton of soccer (Major League Soccer plus the FIFA and other cups).
ABC still has the NBA and will even still show things like IndyCar racing (the Indianapolis 500 comes to mind).
But CBS Sports seems to pretty much just disappear for a third of the year.