Along with Roku, Apple and Google, Amazon is a major player in streaming TV devices, and the Fire TV Stick is the most popular Amazon streamer. It's small, cheap and capable, and people seem to like it.
A president pro tempore is the leader of the Senate when the Vice-President is not there. (pro tempore is Latin phrase which means for the time being.) Unlike the VP, he can also vote to create a tie, since he is a Senator. The position is elected by the Senators.
Sometimes, this is an honorary position, with few substantive duties assigned. In states where the lieutenant governor presides over the Senate, the president pro tem usually assumes duties associated with a president. Speaker of the House or Assembly. The speaker is the principal leader of the House or Assembly.