To put that in perspective...the 9/16/98 game was game #151 on the season, with the Rangers playing the Angels, who they were trailing by one game. The Rangers won, which put them into a tie for first place.
Last night was an August game, with the Rangers comfortably in first place.
Rangers fans are starved for winning baseball. And the Rangers, right now, are well placed to capitalize on that.
With the Rangers having won last night, and with Cliff Lee going tonight, I expect the record rating to stand for exactly one day, with a new record being set tonight.