I think you could manage to teach even without a TV with just a text book and practice book, but I think animations and such make it much easier to understand some areas. We know for certain that some kids can learn just from the books alone. We also know that even with a teacher in the class, some students won't learn.
Unfortunately I have not been able to find a single study that would examine how well a normal class would learn without a teacher, if they had a (good) structured self learning material on hand. It seems as if there is no motivation in finding out how well it would go. In other words, we are not even tried.
Here is what I have in mind for the study:
0. First of all, the videos and computer program used in the study should be top class. Something that has really took effort to make, to make sure we are comparing top quality self learning material to normal teachers. This might sound unfair, but we can easily copy the high quality material, so even if the material costs a million dollars to make, if we use it for million students, the cost would be dollar per student. This is also the most difficult part, as getting a funding for something like this is not easy.
1. After the material is ready, we start so that student watches a video about the subject.
2. Student starts practicing on a computer. Computer checks answers and gives instant feedback. This works especially well on subjects that rely on memorization, e.g. languages. It does not work on subjects where you can't use automatic checking of answers, but I would be happy to see this even in one subject for starters.
3. Computer shows constantly your progress and gives you points and what ever to motivate you like any normal video game.
4. After several days or weeks, when computer thinks you are ready, you will take a test to evaluate your score.
5. We let human teachers teach a class traditional way and let them take the same test and compare results. How long did it take? What kind of results did the students get? How well did the best and the worse do? Is there a age limit after which this would start working?