It depends whether they are using their own planes or not. We flew with Airtours this year and they used Monarch who had no seat back tv's. I think their own planes do have seat back tv's. Have a look in the brochure and see who the flight is actually with.
That is too funny, I was scrolling on my way to the community boards and I seen MYTRAVEL...the company I work for in Canada JUST go bought out by MyTravel. Hope they can help you!