While I feel my overall knowledge of things audio as it relates to a home system is pretty solid I'm afraid I've let technology pass me by somewhat when it comes to the video aspects of a home system when I let the home theater experience and my Apple TV go some 7 almost 8 years ago. I was given a Chromecast for Christmas and I'm a little confused as to what it entirely does and do I need this or something like the Firestick or even Apple TV. For those 7 or 8 years I've virtually ignored TV and Movie watching not entirely but I have watched only nominally. Several months ago my brother recommended and I tried Netflix to watch several TV series and I have enjoyed watching TVS this way. I've even watched some of the older and a few more recent movies. My Samsung TV is a "smart" TV with Smarthub which is connected via WiFi to my network and that's how I access Netflix. I know Hulu and other apps are available but I have not explored further. My question is since I have a "smart" TV do I need or how would I benefit by something like Chromecast, Firestick or even Apple TV. My interest would be to continue to watch the TV series available on Netflix but I would also be interested in accessing series by Showtime or HBO if available. I would like to access newer movies even on a pay per view basis (that's where I'm assuming Apple TV might come into play) and I would especially like to view live sports (ESPN etc) over the Internet and finally if I could access local HDTV channels my goal would be to give up my current satellite service. Any recommendations, suggestions and pointers is appreciated.