Criterion is set to re-release Othello on Bluray which will have both the European (1952) and U.S. (1955) versions. I doubt this screening will feature either one of those restorations.
Usually, if a movie needs restoration to save it, the Criterion restoration is bought or added to the studio vault--It's all about "saving" the print, after all.
I remember watching another network running a Universal Monsters marathon for Halloween, and was surprised to see Criterion's brand new Island of Lost Souls print added to Universal's roster.
But since nobody "owns" Welles' Othello, that may not be the case.
(And is it just me, or was Welles just not that good an Othello? Welles spent too much directorial and performance time trying to work past the blackface and make Othello seem "noble" as a good military man, but that makes him too stiff to show any emotion at all when he's supposed to be going unhinged with jealousy. More like a 4-star Pentagon general talking to the press about rumors of his wife's affair, and only showing a little personal disgruntlement when he gets questions about the evidence.)