Howard Stern has officially parted ways with E!, his show’s TV home of 11 years. The cable network has pinkslipped all 15 staffers on “The Howard Stern Show,” reassigned a pair on the West Coast and announced that the show’s final original episode will tape July 1 for air July 8. Insiders say E! has dropped out of the bidding to keep the show on the air, leaving men’s cable network Spike TV poised to pick up the daily radio broadcast once it moves to Sirius. Stern’s contract with E! expires at the end of the month, but E! had reportedly remained interested in keeping the franchise alive, competing against interest from Spike and perhaps HBO. Insiders say Stern has ended talks with the entertainment cabler but is still pursuing an agreement with Spike.