It was all CBS on this Thursday night as the network won all key measures including total viewers (5.08 million), adults 18-49 (1.2 rating/5 share), adults 18-34 (0.6/4) and adults 25-54 (1.6/6). “Big Brother 18” (CBS) and “Greatest Hits” (ABC) — the latter, in its 2-hour season finale — each drew a 4-week best in […]