I think the best way is to keep your camera on target from the beginning. I'm not being a "smarty", I just know from experience. It all starts with the camera operator!
The work-flow of PD up to version 8 just takes your files in the main time-line and makes them fit. I never really thought of the main time-line in those terms.
The TV safe zone is primarily a guide for titles and such, and in reality is a little more generous than it let's on.
You can bypass the main time-line altogether by just using PIP, where you can see the safe zone.
HP Envy Phoenix/4thGen i7-4770(4@3.4GHz~turbo>3.9)
Nvidia GTX 960(4GB)/16GB DDR3/
Canon Vixia HV30/HF-M40/HF-M41/HF-G20/Olympus E-PL5.
Tape capture using 6 VCR, TBC-1000, Elite BVP4+, Sony D8 camcorder with TBC.
https://www.facebook.com/BarryAFTT