Enjoyed the season premiers of both Dexter and Homeland. Both shows require the viewers to suspend some (or greater) level of believability in order to enjoy the plot.
Dexter was in desperate need of a retool. It couldn't have just continued with the same old approach of Dexter eluding the police while doing his thing against this bad guy or that. I think the Debra angle was a much needed plot point and I was very pleased with the premier episode at least.
As for Homeland, it will be interesting to see what Brody's motivations are this season. Does he still believe in the cause or is he going to be forced into taking part in Nazir's plans? I thought the "witness that will only speak to Carrie" angle was a bit weak, but obviously they needed a way to bring her back into the action so I guess it will suffice. Can't wait for Carrie and Brody to meet again, they have such incredible chemistry.