Game of the week? No doubt. Game of the season? Yes, so far. Biggest game ever? Never say ever, but who knows?

There are many more questions than those three, but that's a good place to start. Texas Tech, No. 2 in the BCS, at BCS No. 5 Oklahoma Saturday has enough story lines to fill a book.

Measure the definition and size of "Big Game" however you want. ESPN's College GameDay will be in Norman (its fourth Big 12 visit in the last seven Saturdays), an ABC national television audience (which, ratings-wise, might top the season-best Nielsen numbers for the Texas-Texas Tech game), Big 12 South Division and national championship hopes will be boosted or busted, a Heisman Trophy might be decided.

"This is as big as it gets," Oklahoma senior wide receiver Juaquin Iglesias said. "Just for the fact that all of our goals are still in reach, and if we win you never know what’s going to happen in the BCS."

A big game in November is business as usual for the Sooners and coach "Big Game" Bob Stoops. The Red Raiders, though, are newcomers to the Big Game stage. Not that sort of experience should matter.

"It’s such a huge game," Stoops said. "We’ve been in big games but they have, too. This year they've already been in some. Our guys won the championship last year and big games leading up to it. I don’t see that’s a huge deal. The bottom line is how you come out and play."

In its last three games, Texas Tech has played at a high level. On Oct. 25, the Red Raiders beat a ranked team (Kansas) on the road for the first time. The following Saturday, Texas Tech beat No. 1 Texas, the school's first victory over a top-ranked foe. Then came a victory over Oklahoma State, ranked No. 8 at the time.

With the victory over the Cowboys, Texas Tech became the first team since 1965 to beat the No. 1 team and a top-10 team in consecutive games. That victory also gave the Red Raiders a 10-0 record for the first time since 1938.

All those accomplishments merely lead to another challenge - winning at Oklahoma, something that has been accomplished twice in the Bob Stoops Era.

"We understand that the Big 12 Conference is a tough conference, and you're going to play some of the elite teams in the country every year," Texas Tech quarterback Graham Harrell said. "We don't think about, 'We've never done this, we've never done that in the same season.' Since any of us (Tech players) has been alive, we'd never been 10-0, but we've done that."

One other thing Texas Tech has never done is beat Texas and Oklahoma in the same season.

If he continues his level of play over the last three games and Texas Tech wins, Harrell could clinch a majority of Heisman Trophy votes. Conversely, Oklahoma sophomore quarterback Sam Bradford could thrust himself into the Heisman discussion.

Bradford played just two series last year in Lubbock. When he went out with a concussion, Texas Tech built a big lead and held on for a 34-27 victory.

"Not only because we didn’t play against him last year, but also because he has a whole ’nother year under his belt. That makes a big difference for a quarterback," Texas Tech safety Daniel Charbonnet said. "Last year, he was a freshman. This year, he’s a sophomore with a lot of experience. I think that’s what makes the biggest difference."

Texas Tech can clinch the Big 12 South title with a victory. An Oklahoma victory would raise the possibility of a three-way tie in the South between the Red Raiders, the Sooners and Texas. The winner of the Big 12 will play Missouri in the Dr Pepper Football Championship on Dec. 6. If the South representative wins, it probably will lead to a spot in the Bowl Championship Series title game.

"We've got to finish," Harrell said. "This is a tough conference, with the toughest teams in the country here."

With the biggest games.

Not lacking friends
Last week, Texas Tech wide receiver Michael Crabtree had to change his cell phone number because his phone was "blowing up" with calls. Texas Tech quarterback Graham Harrell is battling another issue of modern technology.

His Facebook account has reached its limit for on-line "friends."

"I have Facebook, but I'm not a Facebook guy anymore because it's got a little overwhelming," Harrell told the Dallas Morning News. "They cut you off at 5,000 friends. I hit that a while back. To add a new friend, I have to delete an old one, and that just doesn't seem fair."

Hanging tough
When Phillip Bates quit the team before conference play started, Iowa State's Austen Arnaud became the Cyclones' quarterback with no back up. In order to preserve the redshirt status of the team's other quarterbacks, Arnaud has persevered - attempting 356 passes with 94 rushing attempts.

"He's a tough guy who has really commanded the respect of our whole team through being tough," Iowa State coach Gene Chizik said. "He has been dinged up in a game, but he knows that there is no other option and he goes right back in there."

Against Missouri Saturday, Arnaud was "dinged up" and had to come out for one play. The Cyclones ran a direct snap to a running back and Arnaud returned to the field.

Bowl bits