The future of Friday Night Lights looked increasingly dim after the NBC show failed to attract much attention from viewers when, as a test, it was moved to the 10:00 p.m. time period Monday night. Although its competition was a rerun of CSI: Miami, Lights drew only a 5.7 rating and a 10 share. (The CSI: Miami repeat registered a 10.4/17.) The figure was particularly disappointing considering the fact that Lights had Heroes, perhaps the biggest new hit of the current season, as its lead-in. (Heroes scored a 9.7/14 in the 9:00 hour.) Moreover, the previous occupant of the spot, Studio 60 on the Sunset Strip, also believed to be on the verge of cancellation, pulled a 6.3/10 in the same time period last week.