To Watch Tonight

What to watch as you celebrate Russian freedom of the press ... • Arena football: Philadelphia at Columbus (8 p.m., ET). Two nicknames you will never guess. [ ESPN2] • MLB: New York Mets at Chicago Cubs (7 p.m., ET). Cubs attempt to throw the game, Mets still lose. [ ESPN] • NBA: Eastern Conference quarterfinals, Game 2, Washington at Cleveland (7 p.m., ET), Western Conference quarterfinals, Game 2, Utah at Houston (9:30 p.m., ET). Win one for the polygamists! [ TNT] • NHL: Eastern Conference quarterfinals, Washington at Philadelphia (7 p.m., ET). Someone to Wachovia me. [ Versus]