Remember when summer television was an oxymoron? Now, instead of warmed-over reruns and stale burn-offs, broadcast and cable networks are increasingly giving us fresh fare during the warmer months. Audiences have already proven themselves addicted to Showtime's Nurse Jackie and hungry for more of HBO's True Blood , while NBC is offering several series such as Merlin, The Philanthropist, The Listener , and something called I'm a Celebrity, Get Me Out of Here! just to name a few. TNT seems hellbent on programming nearly every night of the week while USA returns its scripted hit dramedies and launches a new one with Hamptons-set medical series Royal Pains . So what will I be watching this summer? Turn up the A/C, grab an ice cold elderflower Collins, sit back, and relax... Let's take a look at what I'll be tuning in to during the hot season. JUNE Nurse Jackie (Showtime) I've already raved about this brilliant and darkly hysterical drama series starring Edie Fal