Tivo bolt has a built in media bridge?

I can see one of my TIVO Premieres (The Only TIVO Premiere I have connected),Havent got around to connecting the other one yet, when I scroll down on the main menu on my Tivo Bolt. I didn't even set it up to talk to the bolt or vice a versa. Since IO can do this, does that mean I shouldnt waste my money on a Tivo Media bridge? I'm obviously not an expert of any kind so I am here trying to find out. Thanks, Pat