A:AnswerThe free channels are all the ones that are available on the regular Roku Service. Roku is one of the best streaming services available. Channels like, Youtube, Amazon, NBC Live Sports, NBC, all channels avail with the regular Roku service
A:AnswerThere are two audio out ports on this model of TV. The TV has a 3.5mm audio out port, labeled with a picture of headphones. Below that is a digital audio out port, labeled SPDIF. Either can be used, it will depend on what your receiver is capable of connecting with.