It's possible to watch classic TV shows legally via NBC Classics, Netflix, Xfinity and Amazon Prime Video. Some sites require a subscription before users can watch, and some offer free trials before users have to pay.
NBC Classics features shows NBC aired. This includes older classics like "Knight Rider," "Battlestar Galactica" and "Miami Vice," as well as newer ones like "30 Rock" and "Lipstick Jungle." Once users find a show they want to watch, they click through to it, select the episode and begin viewing.
Netflix offers an array of classic and modern TV shows alongside movies. While shows vary from year to year, classics include "Friends," "Lost," "Everybody Loves Raymond" and "Frasier." Users must sign up for an account before watching, but Netflix often offers a free one-month trial, and it is available to watch on laptops, smartphones, iPads, tablets and compatible televisions.
Xfinity offers a variety of shows spanning across multiple eras. Classics include "Twin Peaks," "Happy Days," "Lost in Space" and "The Brady Bunch." Users who want to watch the shows usually have to sign up for an account, and some shows require specific subscriptions. For example, watching "Friends" requires a TBS subscription.
Amazon Prime TV offers television shows users can watch with a subscription, alongside shows they can download and buy. The subscription comes with a free 30-day trial. Shows include "Sex and the City" and "The Sopranos."