As you may have heard, the AMC drama Mad Men is ending its run this Sunday, and while fans are eagerly awaiting the last hurrah of the Sterling Cooper gang, AMC is making big plans for the sendoff. Starting today at 6 p.m. Eastern, the network will become all Mad Men, all the time, with a marathon of every single episode leading up to the finale on Sunday night.

But the special treatment Mad Men’s getting in its final days doesn’t just extend to AMC. It turns that all of AMC’s sister networks (BBC America, IFC, Sundance, and WE) are all but shutting down to make sure there’s as little as possible to distract you from watching the show. When the Mad Men finale begins airing at 10 p.m. ET, all four sister networks will suspend their regular programming and instead run a commemorative message in Mad Men’s honor. So, if you change the channel to one of those networks, it’ll try to steer you right back to AMC.

We didn’t need more proof of Mad Men’s impact on the TV landscape, but four different networks choosing to basically kneel at the show’s feet for its final 60 minutes is certainly telling. There’s going to be a big Don Draper-sized hole in the AMC family when this show ends, one that I one day hope to fill with my B.J. and the Bear-style spinoff about the friendship between Roger Sterling and his mustache.