Around the remote: Chuck Barney's picks for April 24-30

DON'T MISS: "Game of Thrones" - So just how dead is Jon Snow (Kit Harington)? That's one of the key questions loyal devotees are asking as the Emmy-winning fantasy epic returns for its hotly anticipated sixth season. The opener takes us to Castle Black and picks up just moments after the brutal attack on the Lord Commander of the Night's Watch. Meanwhile, all over Westeros, the danger is mounting for many of our beloved characters from George R.R. Martin's novels. 9 p.m. Sunday, HBO. …