Ratings weren’t entirely super for NBC’s The Cape, which took flight on Sunday night with a two-hour premiere.

In the 9 o’clock hour, the costumed crimefighter drama placed fourth in both total viewers (8.49 million) and the demos, opposite heavy hitters Desperate Housewives and Undercover Boss. Come 10 pm — versus Brothers & Sisters and a CBS repeat — The Cape managed to top the demos (with a 2.6 rating).

The Cape claims its regular Mondays-at-9 slot starting January 17.

Elsewhere on Sunday night:

* Buoyed by NFL overrun, The Simpsons dominated its 8:00 time slot with 12.7 million viewers and a 5.7 rating.

* Fox’s Bob’s Burgers served 9.4 million total viewers in its 8:30 debut, holding onto 75 percent of The Simpsons‘ audience and demos.

* Housewives was the night’s most watched show (with 12.7 million viewers), but from 9-9:30 got edged out by Family Guy in the demos.

What did you watch this Sunday? Think The Cape has legs?