The likelihood of successfully pulling the fibre on the existing Ethernet is slim, as it is likely stapled somewhere along its length. You can discuss with your electrician.
Your additional TV locations should be able to be connected by coax, if Ethernet is not available there. Can your mesh work over Wi-Fi?
@Wilbur80 Lot of questions about your blog. (In the telecom panel are all coax --ethernet cables --telephone cables terminated in the panel ) This would mean cat cables are single runs to each outlet. Daisy chain to me means outlet to outlet a run of 5 120v plugs on 1 breaker. Is there coax and ethernet in all locations that require a tv. or hardwired computor. Are you serviced ovedhead or UG. Cat to same exterior box is this a
telus or shaw demarcation point. The cat cables to exterior box probably for hooking up to shaw phone if it shows up. Each tv will require a receiver run by cat or coax ( CHECK WITH TELUS ABOUT COAX AND OPTIK TV ) There are adapters for coax to ethernet how well they work ??? It is hard to comment how far is fibre outside box from panel are shaw and telus brought inside by couduit. I beleive the pvr for optik tv feeds the other optik receivers wirelessly from pvr receiver. You need a plug in for the ont near the panel where all termanations are. I think an electrician is your best way to go. I am a 30 year power worker an able to wire most things but some of this new stuff need better explanations. Polecat
@Wilbur80 Is your basement panel have shaw cables in it and tel copper and the start of the cat runs to the outside telus box. And how far from where they go through the wall to the panel. Optik tv has wireless pvr and receivers that run on their wifi to run 4 tvs up to 60 meters away. google it you will find it Yes you can feed receivers with coax but with adapters Telus guy knows how to do that. Or use the cat cables and put wifi routers on far out outlets. It's hard to say how to do this i'd have to look at it. How to wires in hard places i know but not how to connect all the hardware. My thinking you have to have the ont and battery backup near the down panel and feed the cat cables and telephones wires and the coax if needed. Also use existing mesh setup if they will work with telus setup. When all walls and ceilings are finished it make thing difficult. I assume tel and shaw come down the outside wall then enter the house behind their demarcation boxes. Can you see where they come in on the inside. Polecat