 Otherwise, it was unclear whether MyNetworkTV affiliates would air UPN or WB programs at all.Additionally, Tribune-owned Fox affiliate WXMI (channel 17) in Grand Rapids, Michigan aired "Smackdown" on tape delay between WXSP-CA (channel 15)'s switch to MyNetworkTV and the launch of WWMT (channel 3)'s digital subchannel as the local CW affiliate.The WB closed on Sunday, September 17 with a five-hour block of pilot episodes of the network's past signature series, including "Felicity", "Angel", "Buffy the Vampire Slayer" (which was a two-hour episode) and "Dawson's Creek".