Big Brother's 20th season debuted on CBS last night and featured the season's 16 new houseguests moving into the house and competing in a set of challenges which gave Week 1 eviction protection to half the cast and punishments to two additional houseguests.

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Big Brother's Season 20 premiere began with host Julie Chen gather them into two groups of eight having them enter the house in four groups of four. 

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The first group of houseguests to enter the Big Brother house were Tyler Crispen, a 23-year-old lifeguard from Rossford, OH, who currently resides in Hilton Head, SC; Bayleigh Dayton, a 25-year-old flight attendant from Lees Summit, MT, who currently resides in Atlanta, GA; Sam Bledsoe, a 27-year-old welder from Stuarts Draft, VA; and Winston Hines, a 28-year-old medical sales representative from Somerset, KY, who currently resides in Bowling Green, KY.

Entering the Big Brother house next were Angela Rummans, a 26-year-old fitness model from Hilton Head, SC, who currently resides in Playa Vista, CA; Steve Arienta, a 40-year-old former undercover cop from Parsippany, NJ, who currently resides in Wanaque, NJ; JC Mounduix, a 28-year-old professional dancer from Miami, FL, who currently resides in West Hollywood, CA; and Kaitlyn Herman, a 24-year-old life coach from Plainview, NY, who currently resides in Encino, CA.

The third group to enter to the house were Haleigh Broucher, a 21-year-old college student from Village Mills, TX, who currently resides in College Station, TX; Scottie Salton, a 26-year-old shipping manager from Shorewood, IL, who currently resides in Chicago, IL; Faysal Shafaat, a 26-year-old substitute teacher from Orlando, FL;  and Kaycee Clark, a 30-year-old pro football player from San Diego, CA, who currently resides in Tempe, AZ.

Julie then had the remaining four houseguests enter: Angie "Rockstar" Lantry, a 35-year-old stay-at-home mom from Columbia, MD; Brett Robinson, a 25-year-old cyber security engineer from Oakdale, CT, who currently resides in Charlestown, MA; Rachel Swindler, a 29-year-old Vegas entertainer from Myrtle Beach, SC, who currently resides in Las Vegas, NV; and Chris "Swaggy C" Williams, a 23-year-old day trader from Bridgeport, CT.

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After the houseguests had had a chance to introduce themselves to each other and begin interacting, Julie surprised them with the news that Season 20 would feature a technology theme and their first Big Brother competition would allow the winning houseguest to "reprogram the game" and keep eight houseguests safe from Week 1 eviction nomination.

Dubbed "BB Supercomputer," the competition broke the houseguests into two groups of eight that competed in separate challenges after the Big Brother computer "crashed." 

One set of houseguests competed in a "Trash Folder" competition, which the other competed in a "Cybersecurity Zone" competition. 

In addition Julie warned the cast that the houseguest who finished last in each competition would receive a punishment that would "greatly hinder their game."

Angela won the "Trash Folder" competition, while Kaycee finished last and was not allowed to immediately rejoin the houseguests. Swaggy C won the "Cybersecurity Zone" competition, with Sam finishing last and was also not being allowed to rejoin the cast.

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Angela and Swaggy C then faced off a final "Surfing the BB Web" competition in which they had to balance on moving "surfboard" platforms as passing objects attempted to knock them off their platforms as new "webpages" loaded on the "computer."

Both Angela and Swaggy C appeared to do well in the competition, however Angela eventually fall off her platform, making Swaggy C -- who insisted on referring to himself in the third-person by his self-given nickname all night -- the winner of the "BB Supercomputer" set of competitions.

However, once Swaggy C won, he discovered that instead of getting to name eight individual houseguests that would be safe from Week 1 nomination, he would only get to decide which two of the season's four move-in groups would be protected from the season's first eviction.

After all the move-in groups met with Swaggy C and attempted to convince him to select their group for protection, the houseguests also learned what had happened to Kayla and Sam.

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Kayla rejoined the Big Brother house wearing "Pinwheel of Doom" unitard costume that will require her to stay in whatever room she is currently in whenever Big Brother's producers begin spinning her costume's pinwheel. 

Meanwhile, Sam was "turned into a robot" and remained sequestered but allowed to interact with the houseguests through a remote controlled robot that she could navigate through the house. 

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However, Sam will be allowed to rejoin the house as herself whenever the Big Brother producers say "Robot Offline" and then resume her "robot status" whenever "Robot Online" is said.

Both punishments will last until Season 20's first eviction.

Big Brother's Season 20 premiere then concluded with the houseguests gathering and Swaggy C announcing that he had decided to protect his own move-in group (Rockstar, Brett, Rachel and himself) from eviction along with the other foursome his group had stood outside the house with before entering (Haleigh, Scottie, Faysal, and Kaycee).

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Naturally, the other eight houseguests were not happy with Swaggy C's decision -- especially Angela's group, which believed they were the natural choice given Angela had competed in the final competition against Swaggy C. 

Big Brother's special two-night Season 20 premiere will continue tonight at 9PM ET/PT on CBS.