Q: My TV has a USB port for viewing media. Do I still need the Apple Composite AV cable to allow me to view all my videos on my TV?
A: This depends largely on the model of iPod and television that you are using.
Some televisions and media receivers specifically offer iPod compatibility, in which case you might be able to use certain models of iPod directly with this USB media port. However, if this port is not listed as specifically supporting the iPod, then chances are it will not work.
Many generic USB ports on TVs and media receivers are simply intended to read a set of MP3 files from a USB memory stick.
In this case, you will need an iPod-compatible video cable to connect your iPod to your TV using the normal composite or component inputs, and will simply play back the content on your iPod via the TV Output capabilities.