During a steamy sauna scene in the premiere of the hour-long drama Push (ABC, Monday, 8 p.m.), Cal Southern University assistant gymnastics coach Nikki Lang (played by Jamie Pressly) recalls her affair with head coach Victor Yates (Adam Trese). "All that muscle and sweat," sighs Lang, a 1996 Olympic gold medalist, "and he sex...!" A more succinct synopsis of this Beverly Hills, USOC can't be penned. Surprisingly, though, Push may pull you in. Eddie Mills, as swimmer Scott Trystan, shines in and out of the pool.