WMV (Windows Media Video) is a generic name for video encoding solutions developed by Microsoft. The format is a part of the Windows Media framework that also includes formats like Windows Media Audio (WMA), Advanced Systems Format (ASF) and High Definition Photo (HDP). WMV files use the Microsoft container format and represent Microsoft's own version of MPEG-4 (Part 2) video encoding technology.
As you very rightly pointed out, kids nowadays are spending more and more time in front of the television or playing video games. The effect of media on children today can be harmful. Do you have any advice to parents regarding quality of content their kids watch/listen to today?