CBS, 7 & 9:45 p.m. ET; TBS, 7:45 & 10:15 p.m. ET -- Tonight offers the sweetest of the Sweet 16 games, at least if you’re into Cinderella teams and potential upsets. TBS has the biggest of these, with 13th-ranked Ohio (pictured) upsetting enough teams, on their path thus far, to face No. 1 North Carolina at 7:45 p.m. ET. The later game on TBS features a double-digit seed as well, when 11th-ranked N.C. State goes up against No. 2 Kansas at 10:15 p.m. ET. And even CBS has a potential David vs. Goliath match, as 10th-ranked Xavier faces No. 3 Baylor at 7 p.m. ET. The second game on CBS, at 9:45 p.m. ET, is the evening’s most evenly matched and talented contest, at least on paper: It’s No. 4 Indiana vs. No. 1 Kentucky.