You’d better sit down. The Brady kids are in their 50’s and 60’s now. And that iconic house we glimpsed in the opening credits was bought by HGTV, which has combined two irresistible ideas: rehabbing the house and getting the gang back together. All of the one-time Brady kids, the oldest one Medicare-eligible, are back together, working with HGTV’s most popular renovation experts, to make the inside of the house into something that never actually existed before — a real-life version of the “Brady Bunch” sets, even including Greg’s cool attic room. Some lucky Brady fan will win a chance to stay in the house and pretend that Alice and Carol are making dinner in the kitchen. If only Mike Brady was here to bring his blueprints.