WLFI-DT CBS | 18.1 | News Channel 18 at 11 | Late Show with David LettermanLate Show with David Letterman (HD, New, TVPG) Scheduled: from "The Road," actor Viggo Mortensen; comic Paula Poundstone; musician Lyle Lovett. | The Late Late Show with Craig FergusonThe Late Late Show with Craig Ferguson (HD, New, TV14) Scheduled: from "How I Met Your Mother," actor Neil Patrick Harris; musician David Gray. | Family FeudFamily Feud (New, TVG) | WWE Smackdown!WWE Smackdown! (HD, New, TVPG) |