Things are definitely heating up for a May sweeps showdown, and NBC is banking on a former heavy-hitter to score the winning run. According to Variety, the Peacock network has confirmed that the two-hour reunion special, The Cosby Show: A Look Back, will air at 9 pm/ET on May 19 — the final Sunday of the 2001-02 season. In addition to Cosby, the Sunday battle royale features the two-hour series finale of Fox's The X-Files, the two-hour season-ender of ABC's The Practice and the three-hour wrap for CBS's reality smash Survivor: Marquesas.