Identify where the server runs
For an authorized local-media setup, record which device actually hosts the resource and which device opens it. A computer browser requesting its own local server is a different path from a television trying to reach that computer.
The same visible address can therefore identify a different requester-local context after the playlist is moved. Do not assume a working computer test establishes that the source is available to other devices on the household network.
Use a safe conceptual example
An illustrative http://localhost/... reference opened on a computer targets that computer's local context. Opened on another device, it does not automatically mean the original computer. The example is a structural explanation, not an IPTV Canada endpoint or an instruction to expose a service publicly.
A loopback numeric address has a related local role. Replacing it with a guessed private or public address is not a complete repair because the server's listening configuration, network policy and authorization still matter.
Follow the server application's official sharing process
If the local service is intended to be reachable from another authorized household device, use its documented network configuration and access controls. Keep the actual owner and permitted content clear. Do not open inbound internet ports or place the host in a DMZ merely to solve a local reachability question.
Record whether the intended local path works before testing the player. A resource can be valid on the host yet unavailable remotely because it was designed to listen locally. That is not proof of a television account expiry or inadequate internet speed.
Keep service types separate
A public television-service endpoint supplied by an operator is different from a local development or media server. Do not rewrite an operator's account URL to localhost or copy private account credentials into a local relay without a supported reason.
After a documented authorized configuration, test the original item from the intended client and keep the actual result. Remove obsolete test entries and protect any exported credentials. The useful outcome is a clear host/client relationship and supported local access, not a playlist moved between screens while retaining an address whose meaning changed with the requester.
Related questions
Is localhost the same computer for everyone on my Wi-Fi?
No. It refers to the local context of the device making the request, not one universal household server.
Sources and scope
Scope notes distinguish published documentation, supplied information and editorial methods. They do not report a hands-on service test.
