Video playback WD My Passport to Sony Bravia

I often download videos w BitTorrent to WD My Passport and then playback (VLC) on Sony Bravia, no problems with all formats. But recently downloaded TV series in .mp4 that will not playback on the TV. Can it be because I downloaded a ‘compressed’ file containing all episodes of the series? Never had this problem before, can you help? Please keep it simple, am no techie. Thanks.

best to google search Sony Forums for the answer …

the WD My Passport is just a storage device.