tv bracket

Hi All, I have managed to get brain freeze on attaching a TV and bracket to a dot and dabbed plasterboarded chimney breast. The twist here is I previously located the plugs at a fixed height thinking it would be ideal for the TV. Cue life and trying to do a million other things and so now I...

Split face tiling on plasterboard, if I take some off would the plasterboard hold a tv on the wall too? It is located on the outside wall so would it be best to drill straight into the brick to be able to get the tv up?