Netflix is flexing its muscles again: It bought the rights to stream episodes of Mad Men starting this summer, reports the Wall Street Journal. The deal with show producer Lions Gate Entertainment is worth somewhere between $75 million and $100 million, which means Netlfix is paying about $1 million per episode. Starting in late July, viewers will be able to stream the first four seasons. Season five doesn't air on AMC until 2012, but it and subsequent seasons will be available for streaming once they've been on TV. (More Netflix stories.)