BURBANK, Calif. — More than two decades after he lived in O.J. Simpson’s guest house briefly and infamously, Kato Kaelin is living in states of ecstasy and agony, depending on the fortunes of his favorite baseball team.



The object of his obsession is his beloved Milwaukee Brewers, as they chase their first World Series in franchise history. Wins and losses take on greater importance — certainly for Kaelin, who was born and raised in Milwaukee.

On Saturday, he stood in front of the 75-inch flat screen TV in his condo and watched as intensely as people across America once watched Kaelin testify at Simpson’s double-murder trial in 1995.

“I was a fan of baseball way before the O.J. trial,’’ said Kaelin, 59, who wears his once-long hair short and spiky and on Saturday donned a Brewers jersey with No. 1 and "KAELIN" on the back.



Periodically shouting, pleading, groaning and cheering, Kaelin tried to will the Brewers to victory against the Los Angeles Dodgers in Game 2 of the National League Championship Series. He said he might get to Dodger Stadium on Monday night for Game 3 or later this week for Games 4 or 5 of the best-of-seven series but would be perfectly happy at home, where on Saturday he almost was as entertaining as the game.



He tapped his right sneaker on his wooden floors, then explained he was neutralizing the jinx Joe Buck puts on the Brewers every time the Fox TV announcer says “home run.” Soon Kaelin was howling “home run” when Brewers first baseman Jesus Aguilar connected with a pitch from Dodger Hyun-Jin Ryu.



But the ball settled harmlessly into the glove of right fielder Yasiel Puig, and Kaelin noticed his 29-year-old girlfriend, sitting on the couch, stretch her arms with ... a yawn?



“You’re yawning?’’ Kaelin asked, as incredulously as if the Brewers announced they were forfeiting the NLCS. “You’re fired!’’



Then he broke into an impish grin and before long was explaining the intricacies of a Brewers defensive shift.



“Kato knows baseball,’’ he said, miming a reporter scribbling notes. In fact, he says he played baseball for two years at the University of Wisconsin-Eau Claire. And, after moving to Los Angeles and pursuing a career in acting, in over-30 leagues with the likes of Charlie Sheen and Kurt Russell, he added.

At the request of a visitor on Saturday, he dug out his trusty mitt.

“Do me a favor,’’ Kaelin said, ‘“do not say the glove fits.’’

Yes, Kaelin’s got jokes. And a job, as host of the traveling Wizard World Comic Con. And arguably, he is the most polarizing Brewers fan alive.



During games, he provides commentary on Twitter. At times he has been highly critical of the Brewers, especially manager Craig Counsell.

Kaelin said his tweets are meant to help and suggested they may have prompted the Brewers to make important roster moves.



“Somebody’s reading them,’’ he said.



Unfortunately, Kaelin said, some people reading them have relayed contents to his family members, who are not on Twitter. Kaelin said the tweets have strained his relationship with some of his siblings, and his reaction on Twitter after the Brewers blew a 3-0 lead Saturday and lost to the Dodgers, 4-3, probably won’t help.

“Really?’’ he tweeted in part. “REALLY? Vomit pitching by bullpen F it up!’’

Followed by four emojis of excrement, for good measure.



He said he threatens to block people on the social media site if they make derogatory comments. That sets off a blizzard of Simpson-centered tweets, and Kaelin joked that he’d probably sprain his finger if he tried to block all the offenders.



Speaking of Simpson, was he a baseball fan?



“I didn’t watch sports with O.J.,’’ Kaelin said. “It’s funny you say that, though, because I had a buddy of mine, we watched the game one time and he heard me shouting, O.J. did, going, ‘Packers!’



“He never knew. He goes, ’You understand football? I didn’t know you like football.’ So I was like, ’Yeah, I am a (Green Bay) Packer fan.’ That was as close to I got to anything.’’

Follow Peter on Twitter @joshlpeter11