The game had a 25.2 rating, which is about 2 1/2 times what the Sabres’ first-round series with the New York Islanders averaged on MSG even though it was competing with a two-hour edition of “American Idol” (15.9).
The Sabres’ clinching victory over the Islanders on April 20 had only a 9.3 rating, which was lower than the average of the previous four games. The Sabres averaged a 7.0 rating during the regular season, up about 35 percent from the 5.2 they averaged a year ago.
Pergament also addresses the theory that ratings on MSG are being underreported. I've been saying this since February, but the 25.2 VS rating compared to the 9.3 MSG rating seems to finalize that debate.