有不插电的电视机吗英语？

Yes， there are non-electric television sets available in the market.

These types of televisions are called mechanical televisions， which were the first version of televisions invented during the late 19th century. They work based on the principles of mechanical scanning and use a rotating disc with holes to capture and display images.

Although these television sets may seem outdated due to their primitive technology， they still hold some relevance today. For instance， some historians and television enthusiasts use these television sets for educational purposes， understanding the early history of television broadcasting.

In addition， there are also some modern versions of mechanical televisions that use modern tech， such as induction amplifiers and wireless connections. These versions of mechanical televisions are better suited for today's technology demands and do not require electricity.

Overall， while electric televisions have become the norm in today's digital age， non-electric television sets still exist and can be used for educational or nostalgic purposes.