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In the early 2000s, the two biggest names in mixed martial arts ignited a rivalry that would forever change the sport; Chuck Liddell and Tito Ortiz were once friends and training partners - but when competition and pride collided, their relationship exploded into one of the most legendary feuds in UFC history; Mario Lopez, CM Punk, Michael Bisping, Miesha Tate and Ken Shamrock break down the drama

While Canadian superstar Georges St-Pierre looked unstoppable atop the Ultimate Fighting Championship in 2007, the odds were stacked against Matt Serra, who was widely seen as a fighter on the decline; but when a bold reality competition show matched the underdog against the dominant champion, it produced one of the greatest upsets in UFC history - sparking a rivalry no one saw coming; Mario Lopez

Elijah Holyfield continues his relationship with Apollo Crews, as they join forces in a tag team main event against Jaime Garcia and Malik Blade; Harlem Lewis looks to break from the pack while Braxton Cole receives a harsh dose of reality from Coach Bloom; Zena takes on the spicy Sirena Linton.

The elimination chamber has struck fear into WWE superstars for over 20 years, leading to the creation of its own namesake event; relive some of the shocking moments from the premium live event, like Goldberg spearing Chris Jericho through the plexiglass in 2003, the first-ever women's elimination chamber in 2018, the debut of Kevin Owens as he takes on John Cena in 2015 and more.

Making a WWE debut is one of the most nerve-wracking moments in a superstar's career. But for the fans, it's one of the most exciting things they can witness; the 2000s certainly proved to be a time of future Hall of Famers first appearing on WWE Television screens; we look back at the decade's most memorable WWE debuts, including Brock Lesnar, CM Punk, Booker T, Rey Mysterio, John Cena and more.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

See how a drug-free patch is helping people find relief-without medication.

Back Pain? Hip? Sleep well thanks to this cooling topper!

See how one company is changing people's lives by helping them put their tax problems to rest.

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Joni and guests tackle a wide range of relevant issues, controversial subjects and hard-hitting news topics with candor and wit.

The authenticity of football autographs is questioned; the bidders fight for high-end furniture.

Lesa clashes with a hot young buyer; Ricky and Bubba unearth a collection of antique gunslinger toys; Roy tries a new strategy.

The buyers visit Stanton, Calif.; Darrell is banned from an auction; Ivy Calvin lands a cool machine; Jarrod and Brandi flip for a dancer; Barry goes undercover.

Kenny bids on a massive locker; Rene and Casey attempt to go small; Shana and Edwina's mystery box is mislabeled.

The buyers seek to school Rene on his home turf; Darrell hopes to blast the competition; Jarrod and Brandi try to break out of their slump.

The buyers visit Moreno Valley, Calif.; Justin's congeniality earns him Rene's goodwill and a chance to level up; Darrell's tubular locker tests out okay.

In Simi Valley, Calif., the buyers deal with safes, a pirate's booty and a vintage motorcycle; Dave is left with a broken heart.

The buyers return to Costa Mesa, Calif.; Ivy goes all in; Darrell uncovers a major collectible; Barry bets against himself and wins.

Officers in Indiana chase a car full of women; in Illinois, police investigate a man who has allegedly taken dangerous drugs; in California, a suspected gang member barricades himself inside his car as police attempt to get him out.

When officers in California attempt to pull over a vehicle suspected to be involved in a carjacking, things get out of hand when both driver and passenger attempt to flee; officers in Virginia use a dog to help detain a fleeing suspect; an officer in Arizona chases down a suspect through a parking lot.

Troopers in Arizona engage in a high-speed vehicle pursuit with spike strips; in Florida officers use pepper balls to subdue a suspect; when officers in Missouri receive a report involving an alleged gunshot victim, they arrive on scene to find something they didn't expect.

A suspected drug overdose in Lawrence has officers scrambling; gunfire and alleged gang members in Pomona; in Richland, officers chase down a runner wanted for armed robbery.

In Nye County, officers respond to a traffic accident and find a woman trapped in her car with cats; in Terre Haute, a woman is found passed out at a drive-thru; and in Indiana, a self-proclaimed "traveling man" defends his right to travel.

In Montana, officers race to rescue two people stranded in an icy river; in South Carolina, officers intervene in a bar fight; an individual nearly gets caught in a dangerous situation during a foot pursuit in Florida.

In Jefferson County, a traffic stop turns dangerous; in Tulsa, officers pull over a suspected stolen vehicle; in Missoula, police search for a rider on horseback accused of rustling cattle.

In Missoula County, animal control steps in to help two bucks whose antlers have become tangled; in Lafayette, a car full of partygoers turns a traffic stop into an impromptu disco. In Lawrence, K9 Axel demonstrates his skills in the field.

A chaotic scene unfolds outside a Pasco County convenience store; Cpl. Laurence and Deputy Addy Perez jump into action during a foot pursuit in Richland; Slidell officers follow a trail of bullet holes.

Officers in Salinas respond to a bank robbery; wild pursuit in Warwick turns into a foot chase; K9 Shep's nose is put to work in Pasco.

Deputy Lawrence responds to a report of a hider in the attic in Richland; a stolen vehicle search leads to panties galore; a vehicle crash causes a gushing hydrant in Nye County; a dramatic rescue at a train crossing.

On a snowy road in Alaska, officers set up sticks to try and stop a vehicle on the run; in Illinois, officers help a drunk biker get home; Police in Nevada respond to a house fire where the victims claim arson.

In Tulsa, a traffic stop uncovers dangerous goods; in Tallahassee, officers investigate a suspected shooting at an apartment complex; in Pomona, a traffic stop leads to a dramatic foot chase.

Officers in Salinas respond to a bank robbery; wild pursuit in Warwick turns into a foot chase; K9 Shep's nose is put to work in Pasco.