Please read my posts on MPEG-2 HD DVB playback at
https://discussions.apple.com/message/18466823?ac_cid=tw123456#18466823 (particularly the one dated at May 23, 2012 3:05 PM) , I've even listed players that are better at playing this kind of content back. (Will later publish a complete article on this subject with a guide to deinterlacing.)
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You might still want to give a try to something better as
RushPlayer has very annoying pauses: either
It's Playing or
BUZZ Player (read
http://www.iphonelife.com/blog/87/g...release-hardware-mkv-video-player-powerplayer , also following the links to the reviews of these two apps; these articles explain all the little secrets you need to know of these apps). And, of course, you might want to consider remuxing on your desktop with Subler.