Yes. You can put a Gas Log set (aesthetic) or a Gas Insert (heat) into your existing wood-burning fireplace.

Yes. As long as we can vent the fireplace to the outside OR if we can't vent the fireplace to the outside your option would be a vent free gas fireplace.

Yes. There are many options to make your fireplace look new.

Yes. Gas is easier than wood, but would depend on a site visit to your home.

If you want to change to gas you can do a gas insert (heat) or a vent-free log set (less heat). Or, if you still want to burn wood then a wood insert (heat) would be the best option.

Depends on what kind of fireplace (wood, gas, electric) and how you want the finished design to look like.

Yes. You would need a mantel or shelf to deflect the heat away from the TV.

Yes.

If you are burning wood every 50-75 burns. If you are burning Gas Logs then once every 5-10 years.