NBC has already revealed its game plan for Sunday-night telecasts of next season's NFL games. The Peacock has tapped Bob Costas ("Let's go, Or-ange!") to anchor the four-hour block of coverage, as part of which he will host Football Night in America, which is touted as TV's first ever prime-time-Sunday show about the NFL. (Unless you count Desperate Housewives, whose Nicollette Sheridan has been known to flash the occasional wide receiver.)