Once again equity markets tumbled today, pushing the Dow and the Russell 2000 into the red for the year. For the NASDAQ it was the eighth consecutive day of losses.

Causes for today's sell-off are numerous:

• Before the bell, the Labor Department reported a 0.3% increase in the May producer price index (core), slightly higher than expected.
• About two thirds of global markets also reported major declines, mostly due to worries regarding rising interest rates in the U.S. choking off consumer demand for exports.
• Yields of short-term to long-term bonds continued their inversion, indicating the market's expectation of an economic slowdown.
• Fear the Fed is going too far with its rate hikes.

Declines in oil and gold prices didn't ease investors' concerns.

Tomorrow is what the market is really waiting for, the release of the May consumer price index at 8:30 a.m. eastern. The consensus for the CPI and core CPI is 0.2% and 0.3% respectively. If the numbers comes below or within estimate, we can expect the market to start recovering from this month long correction.

iTunes rounded out its network television offerings today by adding primetime CBS shows including all three CSI franchises, NCIS, Numb3rs and Survivor. The shows will be $1.99 each, just like shows from NBC, USA, Showtime, ABC, and (all importantly) Comedy Central's The Daily Show.

Investors seemed just as pleased as customers (the ones who will now be able to watch a bullet ripping through some poor sap's body over and over and over on their iPod's tiny screen). AAPL rode the tech sector up $2.195, or nearly 4%, to $60.76.

With this addition, iTunes carries virtually every popular primetime TV show, all for $1.99 each, and making the company the vendor of choice for watching television on the (very) small screen. The question: do customers want to download their TV, or record it on their DVRs for fullsize viewage? I'd much rather buy my shows one-by-one than navigate the complexities and scheduling required to remember to record them. How 'bout you?