CBS Buries Harper’s Island on Saturday:
As expected, CBS will move recently introduced Thursday murder/mystery Harper’s Island from the plum Thursday 10 p.m. CSI lead-out spot to low-HUT level Saturday at 9 p.m. Based on national ratings for its most recent April 23rd telecast, Harper’s Island sunk to 7.02 million viewers with a 1.9 rating/5 share among adults 18-49. Comparably, retention out of CSI (Viewers: 14.60 million; A18-49: 3.7/ 9 at 9 p.m.) was just 48 percent in total viewers and 51 percent in the demo. A repeat of CSI will fill the Thursday 10 p.m. slot this week, followed by the season-finale of CSI: NY on May 14.

In Other CBS Scheduling News:
The Eye net will air a Wednesday 8 p.m. telecast of Rules of Engagement on May 13, leading into The New Adventures of Old Christine at 8:30 p.m. (which is, no doubt, a test to see if Rules can anchor the evening).

Fox Revamps Sunday:
Two low-rated episodes into its run, Fox has announced that animated Sit Down, Shut Up will move from Sunday at 8:30 p.m. (out of The Simpsons) into the Sunday 7 p.m. anchor position. In other words, there is no reason to think this is anything more than a burn-off maneuver. Leading out of relocated Sit Down, Shut Up will be repeats of American Dad at 7:30 p.m., followed by aforementioned The Simpsons, relocated King of the Hill, Family Guy and original installments of American Dad from 9-11 p.m.

Speaking of Fox:
The Big 3 networks will air President Obama’s third live address to the country since taking office tomorrow from 8-9 p.m., but Fox has politely declined. The network chosen to keep regularly scheduled drama Lie to Me in the hour instead.

Why ABC, Why?
ABC is apparently in conversations to keep fading comedy Scrubs on the air next season with either all or part of its cast members back on a recurring basis. At present, the actors have no deals beyond the current season and Donald Faison, John C. McGinley and Neil Flynn have all filmed pilots that are waiting word on a potential pick-up.

WBDDT Announces Harry Potter Sweepstakes With Six NBC O&Os:
In anticipation of Harry Potter and the Half-Blood Prince on July 15, the sixth title in the ongoing franchise, Warner Bros. Domestic Television Distribution is teaming up with six NBC owned-and-operated stations on a sweepstakes promotion for The Bonnie Hunt Show, The Ellen DeGeneres Show and Extra. The Harry Potter and the Half-Blood Prince London Premiere Sweepstakes will run over the next two weeks in May in New York (WNBC: May 11-22), Los Angeles (KNBC: April 27-May 8), Chicago (WMAQ: May 11-22), San Francisco (KNTV: April 27-May 8), Dallas (KXAS: April 27-May and Miami (WTVJ: May 4-15).

Viewers in these six markets will need to tune into Bonnie, Ellen and Extra each day to watch for the daily magic word, then log onto the local NBC stations’ website, search “Harry Potter,” and enter for a chance to win. Each correct answer will put viewers in the running for the grand prize and daily prizes. The grand prize is a trip for two to London for four nights, plus two tickets to the world premiere of Harry Potter and the Half-Blood Prince