You can't sit at home and watch the Mars landing in your underwear while scratching yourself; but you can go watch it at one of several events in Houston or Baton Rouge.

 

 

According to NASA the Mars Science Laboratory continues its final preparations for entry,
descent and landing this upcoming weekend. Yesterday, the flight team completed
and confirmed a memory test on the software for the mechanical assembly that
controls MSL's descent motor. They also configured the spacecraft for its
transition to entry, descent and landing approach mode, and they enabled the
spacecraft's hardware pyrotechnic devices. MSL is now under the control of the
autonomous entry, descent and landing timeline flight software. The flight team
continues to monitor Curiosity's onboard systems and flight trajectory. The
spacecraft and ground systems remain in good health, with no significant issues
currently being worked. Here is a list of places where you can watch this historic landing live!