Can I buy a TV series on iTunes and watch on a laptop and not Iphone screen?

Might sound like a ridiculous question but if I buy a season of a TV show on iTunes am I able to watch it on my laptop? I don't want to watch on my iPhone screen- it's too small, I want to watch in a bigger window on my laptop so I can watch with a friend. Is that possible? I don't want to spend however much money on a TV series if I can only watch on an iPhone sized screen

Videos or apps designed for an Iphone are formatted for that small screen.
even if you can make it work on the laptop the quality of the video/picture will be too low to enjoy…