Question

your friend spends all his free time watching tv with your partner discuss what problems can he face. how can he be encouraged to take up more productive acteveties.

Answer 1

u can tll him the disadvantages of watching tvs all the time 
u can tke him to places he has never been before and 
encourage him to play sports and do other physical activities

Answer 2

There are a lot of ways in which they can beencourage to do the shift. But of course you have to think it over if the company will give them.
First you can increase their pay or salary

Second you can organize a contest on perfect attendance bonus and no late policy .

Third you can have them some free stuff like freedinner and transportation allowance. 

Fourth you can organize a party once a month were there are games that has prizes for them.