You know, there have been dozens of well-meaning people registering lately JUST so they can tell you exactly how to do this, but those mean ol’ mods keep banning them before they can get their message out.
I decided to jump on the Mad Men bandwagon when I saw that AMC was going to run all of the old episodes in order before the premier of last season. They were on at a weird hour, very early Sunday morning, but I just set my DVR and began to enjoy. Checking their website it shows that they are rerunning last season in those Sunday slots. Maybe for the new season begins they’ll start again from the beginning. So if you have a recorder and don’t have Dish or anything you might be able to see them with just some patience.
A lot of series that I want to watch (“True Blood,” “Dexter,” “Homeland”) aren’t on Netflix. Happily it does have “Mad Men” and “Prime Suspect” and “The Office (U.K.)” (which are other great series).
They used to stream Dexter. You have to keep an eye on their streaming, as they are always adding titles and taking some away. I always keep an eye here to see when things are going to stop streaming, but they also give you upcoming titles. For example, the streaming for Married With Children ends Oct 1…and Walking Dead Season 2 starts streaming Sept 30
Netflix does stream Showtime shows from time to time, but I don’t think I’ve ever seen them streaming an HBO show. Maybe because HBO has their own streaming service with HBOGO
I’m currently watching Weeds on Netflix, which is a Showtime series. (Boy is it good.) I don’t think the most recent season of Mad Men is on Netflix. I really hate waiting. I’m currently behind the curve on Breaking Bad and it’s killing me.
Weeds is really terrific, though, so I’m good. I’m also watching a lot of Doctor Who, which is delish.
I just took a look at wwitv. It looks like it aggregates the streaming sites for television channels throughout the world. For the US, these are mostly government access channels. So my opinion is that it’s not illegal, but it’s also not very useful. Certainly it doesn’t help the OP see Mad Men.