THE MIDDLE - "Royal Wedding" - Obsessed with the upcoming Royal Wedding, Frankie shocks her family when she treats the event like the Super Bowl and begins purchasing commemorative chotchkies - as well as an expensive HDTV - to enjoy the festivities. Meanwhile, Brick tries to teach Sue how to become an on-air reporter when she decides to try out as an anchor for the school's Shucker News Team, and Mike has a mutiny on his hands at the quarry when he's forced to make cutbacks and takes away the one thing his workers care about - free pretzels -- on "The Middle," WEDNESDAY, APRIL 20 (8:00-8:30 p.m., ET) on the ABC Television Network. (ABC/RICHARD FOREMAN) EDEN SHER