There are MPG file and MPG HD TV, the main difference between them is resolution, the MPG HD TV's resolution is at least 1280*1024. so, when you want to convert swf to mpg HD TV, you can adjust the resolution of the video by iWisoft link
converter. SWF to MPG Converter is the easiest way to convert SWF to MPG. It can convert SWF to MPG, MPEG1, MPEG2 and DVD/VCD/SVCD compatible mpeg file. It also supports download and convert online SWF to MPG, SWF to AVI, WMV, FLV, MOV, MP4, MPEG, 3GP, ZUNE, MP3, GIF, Animated GIF, JPEG, PNG, etc. So you can play the video on iPod, iPhone, Pocket PC, PSP, Zune, Mobile phone and so on.