Cosmos: A Spacetime Odyssey arms, legs, abs.

Do just one body part (arms, legs, or abs), or all three if you're ambitious.

Anyone says "Earth", "cosmos", "universe", or "galaxy"
          .....30 second plank
          .....15 backward leg lifts each side
          .....20 bicycles

Scene takes place in the Ship of the Imagination
          .....15 lateral raises
          .....15 forward leg lifts each side
          .....10 reverse crunches

Animated history
          .....15 shoulder presses
          .....20 sumo squats
          .....20 Russian twists

Absolutely gorgeous CGI
          .....15 tricep pushups
          .....30 second wall sit
          .....20 oblique/side crunches each side

Anyone says "theory", "law", or "science"
          .....20 bicep curls
          .....30 calf raises
          .....20 crunches

Neil deGrasse Tyson is onscreen
          .....10 push ups
          .....20 jumping jacks
          .....10 straight leg lifts