(all) great minds run in the same channel
Wise or intelligent people tend to have the same ideas or think in a similar way. Often used humorously regarding unremarkable thoughts occurring simultaneously between two or more people. Oh, you wanted to see the same film as me? All great minds run in the same channel, I guess!
great minds run in the same channel, all
Intelligent persons think alike or come up with similar ideas. For example, I see you brought your tennis racket-thank goodness for great minds. This term is often uttered (sometimes jokingly) when two persons seem to find the same answer simultaneously, and is frequently shortened. [Late 1500s]