Give this a little time, and then make the insulting of his home theater part of a bigger roast. Screw feeling better about it now, without the confrontation! Bide your time, let it stew, and then totally catch him off guard with a too-well-orchestrated verbal stabbity. Seriously, though, roasts should be yearly events for every single person, even old people and children. Let's all develop thick skins by walking through fire on a regular basis.