First of all, your TV is not interested in random gibberish from loud parties. It’s just not economically viable.

During the Soviet era, not everyone could afford to have a landline phone, but the system kept hunting down its dissidents one by one. If you are a person of interest (which I believe doesn’t apply to you), there are way more important signals to adversaries than your microphone.

It's important to choose your threat model. If your plan is to resist surveillance capitalism or just a random Bob and his grandmother snooping on you online, luckily, there are some effective methods. Otherwise, I would say it’s always a question of time, not 'if' or 'how.'