I’ve been trying to create a tv that plays videos in UE4 for a few hours now to no avail. Supporting movie/video textures out of the box would be really appreciated.
always, leep up the good work Epic.
Take a look at this plugin: https://forums.unrealengine/showthread.php?4358-Plugin-WindowsTextureMovie-Plugin&highlight=movie+texture 
Awesome. And it looks like the developer of this plugin is working with Epic to get it implemented into vanilla UE4 in the future. Awesome stuff.