What if… Stargates had a privacy screen all along?

What if at the end of the final episode of SG1 as SG1 is having their little chat in the gate room it shows Walter in the background chatting with O’Neill. O’Neill and him being slightly frustrated with something about the dialing computer. O’Neill gives it a good smack and suddenly everyone can see through the gate into the other world.

O’Neill: “How long has it been able to do that?!”