Hi Guys.
I am trying to make an advert for in our store.
I have created my Powerpoint Presentation, which includes some videos downloaded from youtube. It plays well as a slideshow and the videos work.
However to play it on the T.V that we are using the only format it will accept (that I can figure out) is mpg.
I have converted the pptx into a mpg, but the videos do not play. They are represented with a grey box with what looks like a speaker in it. Also the transitions I have added do not transfer across.

Any help would be greatly appreciated.