it's fun to see which episodes/seasons jive with people more. i know people who LOVED season 1, but couldn't stand season 3 (which I obviously felt was the strongest of the four).
what about "metalhead" turned you around on this season? is there anything you'd point to specifically? but yeah..."black museum" was definitely my favorite as it layered the hell out of the tech AND the moral dilemma.
RE: Season 4 of "Black Mirror" Was a Serious Disappointment to Me...(Spoilers Inside)