No CBS did.
Super Bowl XLV (45, the 2011 SB) is being broadcast on FOX.
Super Bowl XLIII will be broadcast on whatever channel is your local NBC affiliate.
It was shown by CBS on February 7, 2010.
NBC is the network hosting Super Bowl 43 iN fl: local Tampa Station "News Channel 8", cable channel 7
In the United States, the Super Bowl is being broadcast over 'free' TV on the FOX network.
The 2011 Super Bowl was broadcast on FOX.