He said that installers don't carry them on their truck and it would take a week to ship. He did say I could purchase one at Future Shop the next day and likely install it ourself and all would be hunky dory.
The installer should not leave until verifying that the TV functions. It shouldn't take that long to dowmload channels. They should have sent the installer back right away.
I don't believe that Future Shop, etc. ever carried multi-switches.
Normally, if a multi-switch is required, they will ship it to the customer and arrange installation once the switch arrives.