HBO Max subscribers are in for some good times in December as the streamer closes out 2025 on a very strong note. On the first of the month, Mad Men made its HBO Max debut, and this is one of the most bingeable TV dramas that you'll ever see. It was the easiest choice imaginable for Watch With Us' three must-watch HBO Max shows you need to stream in December. Our other picks include a drama/comedy series and a very funny anthology that recently returned for its second season on HBO Max.