Welcome to the Bose Community and thank you for submitting your first post.
I'm sorry to hear that you are having some difficulty controlling your VideoWave system.
Regrettably, we no longer have replacement remotes available. I understand how frustrating this may be to hear, but I will do what I can to help.
Does the power indicator on the control console blink when a remote button is pressed? The green power light on the front left of the system console should briefly turn off each time a button is pressed on the remote. This will indicate if the remote and console are communicating at all.