The correct answer is: Conclusion does not follow
A = TV shows, B = boring, C = violent.
According to the premises, (A + ~B)*most, and (A + C)most.
The conclusion states (A + B + ~C)*at least one.
In formal logic tests, most means at least most, which is more than half, but possibly more, and even all. This means you cannot conclude that even a single (A + B + ~C) exists, because all you know is that most of A is ~B and that most A is C.
In other words:
It may be counter-intuitive, but if you are told that most TV shows are violent and not boring, that is the only thing you know. You know nothing about the items of the group not mentioned. Maybe all TV shows are violent.
For example: If there are 100 TV shows, there must be at least 51 boring TV shows, and there can be as many as 100 violent TV shows. Therefore, the conclusion does not follow.