Vitale to undergo prostate surgeryESPN basketball analyst Dick Vitale, who is off the the air while recovering from throat surgery last month, is schedule to have prostate surgery today in Bradenton, Fla. Vitale, 68, said he will undergo laser surgery to clear a passage in his prostate. •Nantz voted sportscaster of the year: Jim Nantz of CBS Sports has been elected the 2007 National Sportscaster of the Year by the National Sportscasters and Sportswriters Association. Nantz also won the award in 2005 and 1998. Voting takes place by the nearly 1,000 association members and various sports editors and directors. •Celtics telecasts added: ABC has added two Boston Celtics games to its NBA schedule. ABC will broadcast Boston-Orlando at noon Jan. 27, replacing Phoenix-Chicago, and San Antonio-Boston at noon Feb. 10, instead of Denver-Cleveland, which moves to 6 p.m. on ESPN. The Celtics are also on ESPN at 7 p.m. Feb. 8 against Minnesota and 9:30 p.m. Feb. 22 at Phoenix. •"Toughest Cowboy” on FSN: Defending champion Bandy Murphy of Weatherford led Fox Sports Net's "Toughest Cowboy” reality series after the first event in Kansas City, Mo. Twelve Cowboys, including Logan Hudson of Goodwell, OK, compete in three roughstock categories — bareback, saddle bronc and bull riding. The champion will claim the 30-acre Jager Ranch in Colorado. This week, the series airs at 8 p.m. Friday and at midnight Saturday.