When choosing a TV box, you can consider the following aspects:

1. Processor and memory: Choose a TV box with a powerful processor and sufficient memory to ensure smooth operation and a good video playback experience.

2. Operating system: Common operating systems such as Android systems have rich applications and scalability.

3. Video decoding capabilities: Make sure the TV box supports your commonly used video formats and resolutions to obtain the best video playback effect.

4. Network connection: Choose a TV box that supports wireless network and Ethernet interface to meet different network connection requirements.

5. Interface and expansion: Check whether the TV box has enough interfaces, such as HDMI, USB, etc., and whether it supports external storage expansion.

6. Brand and reputation: Choose a TV box from a well-known brand, which usually has better quality and after-sales service.

7. Functions and features: According to personal needs, consider some special functions, such as voice control, 4K playback, smart home control, etc.

8. Price: According to your budget, choose a TV box within a suitable price range.

Considering the above factors comprehensively, you can choose a TV box that suits you. You can also check out user reviews and professional reviews to get more information before buying.