Senator Barack Obama Senator Barack Obama

If you're not a fan of Barack Obama, you might not want to turn on the TV Wednesday.

The Democratic nominee hopes to close the deal with voters today with his fourth appearance on Comedy Central's The Daily Show and a prime-time, half-hour ad airing on CBS, NBC, and Fox.

He plans to focus on the economy, which has become the top issue on the minds of many voters. John McCain, the Republican nominee, will appear on Larry King Live to offer his own plan to rescue the country from the crisis. And you might just see both candidates on the news.

Obama's special was expected to include a video montage, ordinary Americans talking about the economy, and some live portions of Obama, who is scheduled to be at a rally in Florida. He's expected to make his first joint appearance with President Clinton at some point Wednesday night, and it might make a nice surprise ending for the ad, don't you think?

Besides the broadcast networks, the ad will also air on Spanish-language network Univision, and cable channels including Black Entertainment Television and TV One.

The ad, airing at 8 pm/ET, comes on the 79th anniversary of Black Tuesday, the stock market crash that began the Great Depression. It is the first paid, national political telecast of its kind since independent candidate Ross Perot broke out his charts for a prime-time talk with viewers in 1992.

Of course, if you're just not into politics, there's always ABC: the network plans to go ahead with its regularly scheduled 8 pm/ET broadcast of Pushing Daisies.

It doesn't look like the address will have any effect on the start time of Game 5 of the World Series, which is scheduled for about 8:35 pm. Fox executives said they had asked for the start time, and none of the previous games this year have started before 8:30 pm. McCain tried to make an issue of the ad earlier this week, pointing to early reports that it would delay the start of the game.

"No one will delay the World Series with an infomercial when I’m president," McCain said in Hershey, Pa.

The teams, the Philadelphia Phillies and Tampa Bay Devil Rays, are from key battleground states.

Some good news for Malia Obama, the candidate's 10-year-old daughter: Her dad won't be on the Disney Channel.

On The Tonight Show on Monday, Obama's wife, Michelle, said Malia was a little concerned about her dad's ad blitz.

Are you excited for Obama's special? Or annoyed at his last-minute push?