Note: This glitch requires a TV with a cooking channel and a video game system. First,
have one Sim sit down and watch TV. Switch the TV over to the cooking channel so that 
the Sim can start earning its skill point. Now, have a second Sim go over and start 
playing video games. You should now notice that although the TV is displaying video 
games, the first Sim still has the skill meter above its head! Simply allow this Sim
to sit there until it decides to go do another activity on its own. After that, the 
skill meter should stay above its head until you start another cooking skill activity.
As an added bonus, you can train two skill points at once! i.e., Go work out and both 
the athletic and cooking skills will continue to rise.