“Blog Cabin” (9 p.m., DIY): You can build a real house from the comfort of your own

“Blog Cabin” (9 p.m., DIY): You can build a real house from the comfort of your own home, with mouse clicks instead of a hammer and nails. Literally a groundbreaking series, “Blog Cabin” is a three-step do-it-yourself process: You help design it by voting online ... watch it go up ... then (if you’re really lucky) win it when it’s complete. Until then, you can follow each step of the construction process on this DIY Network series, while the show’s host, Amy Devers, blogs online with special behind-the-scenes information.

“Mad Men” (10 p.m., AMC): “Mad Men” has proven to be a true summer treat. The series about the advertising business, circa 1960, continues with rumors of a surprising romance sweeping through the office. Meanwhile, Peggy proves she can be more than a secretary when some of her ideas go over well in a pitch meeting.