angle points in victor airways

If I am navigating along a Victor Airway, and want to program it into
my GPS, how can I tell if there is an angle (i.e. change in direction)
at an intersection? I know that some intersections are there just
because of changes in MOA, MOCA, etc, but definitely some are there
because the airways "bends". For example, I was flying last night from
New haven to Pittsburgh (yes, in the middle of the rain from Joanne)
along V162. Just east of Harrisburg is BOBSS, where V162 joins V12,
and turns due west.

When I was in training for my instrument rating, my CFII would tell me
to program in every intersection along the route, but that could be
dozens. I can't tell from the legend on the IFR chart the answer to
this.