MSNBC is courting talk show pioneer Phil Donahue to host a new prime-time show starting in June... Jay Leno will celebrate his 10th anniversary as host of NBC's The Tonight Show with a prime-time special on April 30 (10-11 pm/ET)... Speaking of milestones, CBS will air The Honeymooners 50th Anniversary Celebration on May 6 (10-11 pm/ET). It will feature rare and never-before-seen clips from the classic comedy series... Barbra Streisand's mother, Diana Streisand Kind, died last Wednesday after falling in her Los Angeles home. She was 93... Veteran actress Rosetta LeNoire, probably best known as Mother Winslow on Family Matters, died March 17 of natural causes. She was 90... Breaking news has once again forced Nightline to postpone its five-part series on gay life. — Michael Ausiello with Daniel R. Coleridge