CBS (CBS) competes with other media conglomerates like Disney (DIS), News Corp. (NWSA), Time Warner (TWX) and Viacom (VIA) in the media and entertainment business.

The company recently released its fourth quarter 2010 earnings. Based on observed improvements in margins across all categories, an improving advertising environment and continued growth in the local broadcasting segment, we have updated our price estimate for CBS stock to $26.34. Our price estimate for CBS stands at 18% premium to the market price.

Earlier this week, the Supreme Court rejected the NFL's request for "broad antitrust law protection," deciding that each team must be considered separate when selling NFL branded items. This means that each team must be considered its own entity when it sells branded items like jerseys and caps.

The court's decision was unanimous, and it reversed a lower court's ruling that threw out an antitrust suit filed against the NFL by American Needle, which lost its contract for making official NFL hats to Reebok International.

I was checking out one of my favorite blogs yesterday (UniWatchBlog.com - operated by the obsessive Paul Lukas) and I found myself with a subject for this week's JockStocks. Is the NFL a monopoly? Should the league be exempt from the Sherman Antitrust Act?

This all stems from a suit by a company known as American Needle, which sued the NFL in 2000 when the league selected Reebok to be the exclusive provider of licensed NFL apparel. American Needle sued the NFL, stating that the Reebok deal violated antitrust statutes becasue the league and Reebok "conspired to stifle competition and inflate prices."

You know, it figures that this would be the year that I give up my Bengals season tickets. I suffered through three years of horrid football and decided that I was not going to renew my tickets for financial reasons or as a protest against the team's (mis)management in the past 19 years.

That said, one reason that did not attribute to my giving up the tickets was the NFL's new tailgating rules. In an article Darren Rovell put on Twitter this morning (featured in USAToday), a New York Jets fan says that the tailgating rules (that limit tailgating to 3.5 hours before kickoff) may be the "final nail" that forces him to give up his season tickets. The new tailgating rules are supposed to help "crack down on drunken and disruptive fans" by limiting the time fans can tailgate.

You all know that I love to cover the business of sports, so I was particularly interested when stories about Mangini and Quinn crossed my Twitter feed.

Here is the situation: the Cleveland Browns have benched quarterback Derek Anderson in favor of Brady Quinn for the Browns' upcoming Monday Night tilt against the Baltimore Ravens. Thing is, this is the second quarterback benching new head coach Eric Mangini has made -- he benched Quinn in week three in favor of Anderson. I am not going to discuss the merit of either of the starting quarterbacks (as neither has done well), but I want to take a look at the idea that Brady Quinn may have been benched in week three so the Browns wouldn't have to pay the escalators built in to Quinn's contract.

So, a week ago, I decided to tackle the NFL's blackout policy, basically arguing that the current economic situation warrants the lifting of this archaic rule. That said, the topic has been in the collective conscience this week, what with the NFL kicking off on Thursday.

What is interesting is that several teams (including the Arizona Cardinals, Tampa Bay Buccaneers, and my Cincinnati Bengals) have been granted a 24-hour extension to get these games sold out. Typically, a team needs to be a couple of thousand tickets away from a sell out in order to get such an extension. I wonder first if this extension may have been made to placate the teams more than to allow the fans another day to get the games sold out.

Way back when there was this idea called the United States Football League. It had a few good years and a few big names (Jim Kelly, Herschel Walker, and Reggie White) before it failed. Then there was the World League of American Football, featuring teams across the U.S., but no true big-name players. Eventually the World League became just that, with expansion into Europe and the moniker NFL Europe;then that league failed.

Then there was the once-popular Arena League, which boasted Kurt Warner and owners like Jon Bon Jovi. The Arena League lasted nearly 20 years before it took last season off and appears ready to fade into oblivion. Oh, and let's not forget the Extreme Football League (XFL), run by Vince McMahon (of WWE fame). I mean who can forget "He Hate Me?" This terrible business decision lasted one season (and I was suckered into an XFL fantasy league).

Cincinnati-based consumer products giant Procter & Gamble (NYSE: PG) reported fourth-quarter earnings this morning, topping the Street's expectations on earnings but missing on revenue.

As for earnings, P&G pulled in 80 cents per share in the fourth quarter, topping the consensus estimate by a penny. On the revenue front, PG made $18.66 billion in the fourth quarter, well short of the Street's expected $19.32 billion.

Something interesting is happening in the world of the NFL as this weekend's draft approaches. With so much talent in the pool, it appears that every team with one of the top 10 picks is trying to trade out of their current draft position.

In the past, teams used this chart to determine the value of draft picks when trying to trade up or down in the draft. Basically, if you wanted to trade into the top spot from the 16th spot with just draft picks, you would have to find a way to get the team in the top spot as much value as possible. The difference between the 16th and the top pick is 2,000 points, so equaling this value could be rather difficult (just ask the New Orleans Saints who traded an entire draft to pick Ricky Williams).