Per the Ducks website:
"Tuesday night's Ducks game at St. Louis will begin at 5:30 p.m. (PST). However, because of the exclusive rights window owned by Versus on Tuesday evening, the game will be joined in progress on KDOC at 6 p.m.
No other regional broadcasts can be in progress opposite the Versus telecast of Pittsburgh vs. New York Rangers. From 5:30 p.m. to 6 p.m., KDOC will run the latest version of The Element."