Talk:Stargate/@comment-2601:1C1:8803:C65E:C514:530D:FDF4:2664-20181004151825

Why say that the Stargate is only one way? I can't recall any episode where there were two gates so that one is the receiving gate and one the transmitting gate. I can understand the logic to say that it must be one way at a time and that the gate cant send and receive at the same time. What episode shows this?