Online search engines for FREE streaming
Reelgood has a Free Bundle selection which includes over 50 services including Crackle, TubiTV, Vudu, PopcornFlix.
Reelgood, JustWatch and Yidio do make finding specific content available by searching all the services at once. In addition to web search, both have android and iOS apps.
How does watching FREE work?
If you don’t want to pay a monthly cable bill, you can still watch free TV shows online. Full episodes of a surprising amount of television content are available online. And you won’t have to pay anything at all. You can watch these TV shows online free of charge. Full episodes, full TV shows, clips, highlights, online-exclusive content, recent episodes are online. You can watch entire seasons and even complete series are available for streaming from a variety of sources.
Many of the programs are available for viewing via the networks on which they originally aired. Networks often make the most recently aired episode available for online viewing, and some networks allow access to several episodes at a time. Networks may also offer clips from programs or special online-only video extras. [source: Yidio]