Recording from TV

Because i cannot find an appropriate forum for this thread i put it here.My question is when I find those TV series on the internet i guess there were bought as a serial or recorded somehow and uploaded on the internet, so how can I record with my smart TV and edit it on a computer, I've tried everything but because of the encryption of file itself from the TV i cannot play it anywhere except on the TV, is there a way to record the dialty series on TV