How to connect a USB flash drive if there is no USB socket on the TV?

If the TV doesn't have a USB socket, you can consider using the following methods to connect the USB flash drive:

Use HDMI adapter: if the TV supports HDMI input, you can buy an HDMI adapter, connect the USB flash drive to the adapter, and then connect the HDMI output of the adapter to the HDMI port on the TV. The content on the USB flash drive will be played through the HDMI signal.

Use other interface converters: If you don't have an HDMI adapter, you can also consider using other interface converters, such as a VGA or AV adapter. Connect the USB flash drive to the converter, and then connect the output of the converter to the corresponding port on your TV.

Using other devices: If your TV has ports for connecting other devices, such as AV or S terminals, consider buying a device that supports those ports, such as a set-top box or game console. Connect a USB flash drive to one of these devices, and then connect the device to your TV to play the contents of the flash drive.

It should be noted that different TVs and USB flash drives may have different interfaces and limitations, and need to be selected and used on a case-by-case basis.