Expect the unexpected, and hear about the changes on Big Brother this season

MILWAUKEE (CBS 58) -- The first houseguest will be evicted tonight for the 23rd season on Big Brother on CBS 58.

Big Brother puts a group of strangers together in a house with more than 200 cameras and microphones, recording their every move 24 hours a day.

Each week, someone gets voted out of the house.

The last remaining houseguest will receive a 750-thousand dollar grand prize this year.

This is $250,000 more than the usual grand prize of $500,000

Hear more about what's new on this season Julie Chen Moonvez who joined CBS 58 Thursday, July 15.