There'd be some time for TV and all. But you aren't allowed to
use the powerpoint to charge your phone. And whether if it's
allowed or not, it depends on the company. My coy, back then,
allowed MP3 players. Since it's a phone without camera, just bring
in and diam diam 
During my time, there was this guy - he suffered from
schizoprenia and was very... weird.. But he built a batteries
operated multi-phones charger from scratch, total genius.. I still
remember him to date..
And during my time again, we either:
1) Pay that guy to use the charger
2) Bring extra batteroes
3) Use the powerpoint secretly
4) Just off the phone when not in use to conserve battery life
I chose to bring extra batteries 
Hope I answered your question.
hmm maybe i will buy more battery , and bring in extra one , and
i off my phone when not in use , so its very conserving. cos now i
bmt then every book in they will check ur stuff , will they know i
am bringing in a tv phone? i dun think they know also right? they
are just looking for those storage card and camera right?
