- The current season airs on BBC America.
- Classic Era episodes air on PBS stations in some cities and also on a cable network called RetroTV as of summer 2014.
- Virtually all surviving episodes of the classic era and all episodes of the revival are available on DVD (and some on Blu-ray). Any episodes of the current season not yet on DVD/BD can expected to be so within a few weeks or months of broadcast in the US.
- Some, not all, episodes are available on Netflix.
- The international version of BBC iPlayer offers some episodes (including some for free).
- Amazon.com offers Doctor Who as part of Amazon Instant Video Service, here is a link: Doctor Who Amazon Search
Discussion of illegal methods of viewing the show is not allowed here.