You would think there was a standardized RS232 protocol to control TVs and amps.
But don't worry,
If you can find the protocol specifications (either in the back of the manual, or on the website), you can easily make a device template to control your TV
You can use the Sharp Aquos RS232 template as a basis for it. Then once you have this, you can make a plug and play script to send a test command to the TV and expect a response, you can then use this to detect if the TV is connected, and automatically set it up in the setup wizard.
Once you have this, you can work with us to fold this into future releases.