Yea - It cannot be done. I have spent a lot of time trying to solve this mystry. It just cannot be done...
WHY?
On a single line, when u have the smart tv service turned on the bandwidth is increased by 2MB. That 2MB can only support one stream at a time. In order to use smart tv on 2 TVs you would need 4MB allocated for smart TV. This something that ptcl does not allow.
I have been able to stream the service over WIFI by using N routers. I can turn on smart tv on my cellphone and laptop.
The only solution is to get a second phone line.