By Tim Stack
February 03, 2009 at 12:00 PM EST

NBC promoted its Monday night lineup all throughout Sunday’s Super Bowl but only ended up with mildly successful results. The action comedy Chuck, armed with a 3-D episode and a guest turn by Lost‘s Dominic Monaghan, earned 8.4 million viewers, a nice 800,000 jump from the last original episode in December. With 8.5 million eyes last night, Heroes also grew from its previous new episode by about 700,000; still, the number is disappointing compared to what that show used to pull in during its heyday. The return of Medium also drew mixed results with only 8.5 million viewers — not a huge number, but almost double what previous time slot occupants My Own Worst Enemy and Momma’s Boys were able to pull in.