Fix for when Windows Media Player Plays Audio but not Video
As noted in the Tip of the Night for June 26, 2018, Windows 10 doesn't have all of the codecs necessary to play video MPEG files. If you get a mpeg that plays audio but does not display the video in Windows Media Player, try opening the file in the free media player VLC. VLC will not only play both the video and the audio together, but you can use it to convert the file to a format which will play in Windows Media Player.
In the Media menu go to Convert, and select the file you need to convert. Click on the Convert/Save button at the bottom. As the profile, select, 'Video for MPEG4 720p TV/device' and then choose the name and location of the destination file.
A new video file will be generated that Windows Media Player can play normally.