What's in a network blazer? (Static).(mixed employment of sportscasters )(Brief Article)

Used to be you turned on the TV, saw Curt Gowdy, and you knew you were watching NBC. Pat Summerall was CBS, etc. Talent was clearly associated with their networks or identifiable by their sports.

Today, Bob Costas graces Triple Crown races on NBC one weekend, a prize fight the next on HBO; ESPN monument Chris Berman has been the host for Monday Night Football halftimes and a Stanley Cup for ABC; in the space of a year John Madden fisted Fox, ABC and ESPN microphones; basketball voices commute between ABC/ESPN/ESPN2--except Marv Albert and his exclusive Turner contract; Chris Myers, originally with ESPN, is three-timing on Fox, Fox Sports Net and The Tennis Channel; NBC's Johnny Miller and CBS' Jim Nantz cross over on USA and ESPN; just when you're ...