Austen Allen sent this in:

WWE Smackdown will be at the later time of 11 pm tonight, this appears to be due to live coverage of Masters Tennis.
Also, TNA Epics will also be at the later time of 11pm. This must be to ensure that it goes head-to-head with the first hour of Smackdown.

Update sent in by Austen: My mistake, TNA Epics is at its usual time of 10pm on Bravo.