WTV (Windows Recorded TV Show)
WTV ( Windows Recorded TV Show ) is a proprietary video and audiovisual file container format , developed by Microsoft used for storing TV content recorded by Windows Media Center . 
<triplet> WTV (Windows Recorded TV Show) <subj> format <obj> instance of <subj> Microsoft <obj> developer <triplet> container <subj> format <obj> subclass of <triplet> Windows Media Center <subj> Microsoft <obj> developer