By James Hibberd
Updated April 30, 2011 at 03:18 PM EDT


A few Friday cult favorites dipped in the ratings last night, with Friday Night Lights, Smallville, and Shark Tank posting declines, while Fringe perked up a notch.

CBS’ royal wedding special (8.6 million, 1.7 preliminary adults 18-49 rating) tied CSI: NY (9.2 million, 1.7) to win the night, but the special added some pressure to the other 8 p.m. shows: ABC’s Shark Tank (4.6 million, 1.2) fell 14 percent, The CW’s Smallville (1.9 million, 0.8) dropped 20 percent and NBC’s Friday Night Lights (0.6) plummeted 33 percent to rank as the night’s lowest-rated show — including programs on The CW. At 9 p.m., though, Fringe (3.5 million, 1.3) was up a tenth and Supernatural (1.9 million, 0.9) was steady.