MORE: Watch Kentucky vs. Ohio State live with fuboTV (7-day free trial)Ohio State had climbed 15 spots in the AP poll and would have made a great case for No. 1 this week had the Buckeyes avoided a stunning 84-71 upset against lowly Minnesota on Sunday. Chris Holtmann’s group already has wins over Cincinnati, Villanova, North Carolina and Penn State and just the one loss.Kentucky, meanwhile, has had its fair share of ups and downs. The Wildcats made a statement on opening night by beating preseason No. 1 Michigan State. Kentucky took the crown as the nation’s No. 1 team the following week and answered with a shocking home loss to an Evansville team that has already suffered four defeats since the Kentucky victory. John Calipari’s group also went back-and-forth with Utah Valley, started slow against Georgia Tech, and only led in the opening minutes in a loss to inexperienced Utah earlier this week.With recent sputters in mind, Saturday’s matchup between title contenders carries a bigger sense of urgency than if both teams were cruising heading into the CBS Sports Classic. The victor will cement its status as a top-five team for weeks to come and the loser will have to pick up the pieces and recharge as the new calendar year awaits.Below is all the info you need to watch Kentucky vs. Ohio State on Saturday, including tipoff time, TV channel and how to stream.MORE: Sporting News’ college basketball All-Decade team for the 2010s No. 5 Ohio State takes on No. 6 Kentucky in a heavyweight battle at the T-Mobile Arena in Las Vegas.Despite the teams combining to start 18-3 on the young season, Saturday’s loser will have lost two of its last three games. What channel is Kentucky vs. Ohio State on today? TV channel (national): CBSLive stream: CBSsports.com | fuboTVKentucky vs. Ohio State can be seen on CBS and live streamed on CBSsports.com as well as on fuboTV.Brad Nessler (play-by-play), Bill Raftery (analysis) and Jamie Erdahl (sideline) will handle the announcer duties.Kentucky vs. Ohio State: What time is tipoff?Date: Saturday, Dec. 21Start time: 5:15 p.m. ETKentucky vs. Ohio State is the second game of CBS’ doubleheader Saturday. UCLA and North Carolina get things going at 3 p.m. Eastern in the first matchup of the CBS Sports Classic from Las Vegas.