what happens if a flying bug goes into your tv when its on?

Don't worry about it. Suppose it manages to land on a component like a chip or a regulator and its leg just happens to connect a lead to a higher voltage lead or short a lead to ground and thereby damage the component. First, the insect doesn't have copper limbs or wings so it does not conduct at common DC voltages. If it does connect to a higher voltage, it will just get smoked like in those bug zappers. I have repaired devices that survived roach infestations. The failure was NOT caused by a roach.

Dear Andy, It won't cause any harm. However, the bug may become the star of its own reality show!

It will probably become a frying bug.

I'm pretty sure that nothing will occur that's out of the ordinary. Don't worry.

The bug gets zapped.

I think nothing will happen. Because there are certain devices for maintaining the problem like this. So dont worry about the tv