Generally speaking, NO if your access to the video is legal. Because laws vary from country to country (and within), you should consult a local attorney who specializes in electronic media, intellectual property and decency laws. In some places the viewing of "unacceptable images" can be illegal. E.g YouTube is one famous and biggest site to watch streaming videos. They also have a live streaming service. You will find that some videos on YouTube are not available in some countries where the IP right and laws restrict the video to be shown in that particular country. So watching streaming videos is not illegal provided the videos itself are legal and you are viewing them from a legit source like YouTube. YouTube has also launched YouTube XL which is a streamlined version of YouTube for TVs so that you can stream and watch YouTube videos on your internet enabled TVs or using STBs with TVs.