Don Loughery has been named exec veepee of business affairs for Columbia TriStar Television.It’s a homecoming for Loughery, who spent three years as the top biz affairs exec at Col TriStar’s predecessor, Columbia Pictures Television, from 1993-96. Most recently, he’s served as senior veep of business affairs for Disney’s Buena Vista Television. “We’re proud to have one of the industry’s most well-regarded business executives on our team,” said Helene Michaels, prexy of network production, to whom Loughery will report. Before his first hitch at Col, Loughery served stints in business affairs for Group W. Prods. and NBC Prods. Earlier in his career, he was head of business affairs and production for Sid and Marty Krofft Prods. and Metromedia Producers Group.