Julie Chen Moonves is the host of CBS' long-running reality show, Big Brother, which premieres its 27th season this week. (CBS Broadcasting, Inc.)

Big Brother, the popular reality TV competition show, returns for season 27 tonight, July 10, on CBS. Here's what to know about the cast and how to watch.

A mystery houseguest is shaking up Big Brother Season 27 — and Men’s Journal has the exclusive final clue to who that person is.CBS has provided the last hint ahead of the premiere in the form of a photo,

Viewers can stream the latest episodes of “Big Brother” live or on demand without a cable subscription by using several streaming platforms that offer CBS, including Fubo (5-day free trial), DirecTV (5-day free trial) and Sling (half off first month).

This year's house guests include a professional bull rider, an AI consultant, a gamer, a Dungeon Master, and attorney Ashley Hollis from chicago.

New episodes of Big Brother Season 27 air live on CBS. If you don’t have cable, you can watch Big Brother online with a live TV streaming service (such as DirecTV or Fubo) or with a subscription to CBS’s streaming service, Paramount+. See below for pricing and free trial details for each of these options.