Install the television version
Google’s Android TV guidance uses the Play Store on the TV to find and install applications. Read the developer name and compatibility information, not just the icon. Similarly named IPTV players can be unrelated products with different fees and account formats.
A phone application and a TV application can share Android ancestry while presenting very different controls. The useful test is whether every essential action can be reached with the D-pad and Select button: login, search, a long channel list and the return path from playback.
Prepare the account before entering it
Establish whether the player expects an M3U playlist URL, an XC-style server plus username/password, or a supported portal workflow. Do not paste an entire long playlist into a server field. Use the private account details supplied for the selected input format.
An application purchase unlocks that application’s features. It does not automatically provide a streaming subscription or establish what content the service may supply. Keep the player licence and the service account as two separate records.
Use a staged first session
Open the newly installed app, add the authorised source, confirm that navigation works and try a small set of actual viewing tasks. Include one live item, an audio/subtitle control where applicable and a guide entry if the service provides EPG data.
If categories load but playback does not, record that distinction. The catalogue response and the media response are separate stages. Repeatedly clearing the Play Store will not necessarily address a video decoder or account-connection limit.
Maintain the working setup
Use the TV’s normal update and storage tools. Removing unused applications can free storage, while clearing a player’s data can remove its saved login and preferences. Save what you need to restore the configuration before using a destructive reset as a troubleshooting step.