The lighting problems occur early and repeatedly in the quest.
(see the related question)
You need him to activate the camera at Good deals, which will keep the lights on when you have to go there.
There are no coins used on Night watch island.
TV
You can use it in the Good Deals store, where the lights only stay on when something is moving in the front by the camera.
night watch island
Go left into the west end and check the copiers at PrintFax for clues.
The Employees Only room in Good Deals. You can use the toy robot by the camera to keep the lights on.
TV
Hulu & NBC.com.
Back Lot Island (April 2013)
at nickolode
Go to check on the card in the safe at Slugger's Keepsakes. You have the combination.