My TV does not have a microphone or a camera. The same goes for my PC. I turn my cell phone off much of the time.
In order for your phone to be inaccessible you need to remove the battery. As for your tv, if it is a “smart” TV ie connected to the Internet, it can also listen in.
If it has a speaker, then it has a mike.
https://duckduckgo.com/?q=using+speaker+for+microphone&ia=web