Tonight’s episode of “Doctor Who,” “The Angels Take Manhattan,” is expected to be the last episode featuring the Doctor’s companions Amy Pond and Rory Williams, and fans are eagerly awaiting its premier.

And while some American fans are planning to tune in to BBC America to catch the hit British series, others are turning to questionably legal online streams to get their "Doctor Who" fix.

The new episode will be shown by BBC America Saturday at 9 p.m. EDT.

So where can fans turn to watch the latest "Doctor Who" as it airs (and sometimes even before, due to the time differences between the U.K. and the U.S.)? Luckily for them, several sites have live streams of the show, so fans can check out the latest episode on a timely basis, even if they don't have cable or a physical TV.

Where are these live streams? Perhaps the most popular is Tardis Blue, streaming on The community site is currently streaming older episodes of the show on loop, but it plans to screen "The Angels Take Manhattan" for the North American premiere. Another site, Adventures in the Tardis, is also planning to host a live stream when the show airs.

For many, streaming sites like these are replacing traditional television.

Die-hard television fan bases are moving further and further away from physical TV sets, as services such as Hulu and Netflix become go-to places to catch up on TV shows. Piracy is an increasing problem in the TV world, as well.

One reason behind the problem is the fact that even when television networks make content available online, it can be inconvenient for many people, especially because content is almost never made available at the same time as it airs on live TV.

So what can fans expect from "The Angels Take Manhattan?" For one, expect to say farewell to the Doctor’s longtime companions Amy Pond and Rory Williams. In an interview with BBC, showrunner Steven Moffat stated that the pair would leave under “heartbreaking” circumstances. As the fan favorite villains The Weeping Angels return looking for Rory in New York City, the show plans to make a final tribute to the two companions.

Check out the trailer for "The Angels Take Manhattan" below.