Here is the full list of all 10 Antenna Dilemma achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Finish Chapter 1.
Find a way to watch TV.
Solve the mathematic puzzle without error.
Look at all sticky notes while controlling Alfred.
Hit the box turtle with the metal bar.
Watch the Cube of Fortune on TV.
Call the pizza place.
Call your nanny.
Watch Waffles on TV.
Give the rice cakes to your new friend.