What is your process like when you capture video? Do you just capture a long video and go through it faster or something like that? Since I mostly capture images I typically just cycle through them with xviewer (default photo viewing app in CentOS). It takes me about 1/2 second per image until I stop on one with a meteor and note the frame number.
For going through many stills I've always used C1P. I can flick between images and see if anything has moved/changed from one image to the next.
For footage, I used to just play through at normal speed. Very time consuming, and easy to fall behind with more than a few clear nights close together, meaning I was always buying new HDDs.
Basically my process now is:
1 - Make notes of start times/ISO and anything else relevant while recording.
2 - Monitor the "meteors live" page here throughout the night, noting the corresponding clip/time of any events of interest that one of my cameras may have captured. With over 200 cameras in the UK it's rare for anything to be missed unless there's a lot of cloud around, in which case I'm likely to be clouded out as well.
3 - Check the footage.
I record 20 or 30 min long clips depending on camera, and stagger the start/stop times since I have one camera upstairs (pointing out of the window in our spare room), and two downstairs/outside, so I have time to go between them. It used to be 10 and 30 min clips but last year I hit stop/start on a 10 min clip just as a fireball exploded so I started using 20 min clips instead. Even with 20 min clips, last night I managed the same feat with this bright July Pegasid - I didn't bother saving the clip.
As far as PI vs. Photoshop, I might not be the best to answer your question. I suspect there are a fair amount of things one can do that the other can't and that goes both ways with some overlap. Though I can't say I've used any form of photoshop for many years and I also can't say I am familiar with everything PI does as it has a huge number of processes and scripts even at the default level without any add-ins. PI has a huge learning curve. It took me months to start feeling comfortable with it and I still occasionally come upon a very useful feature that I wish I knew about long before.
It does sound like a useful tool to have in the kit. I'll have to give it a try sometime.
One of my cameras caught a small kappa Perseid fireball a few nights back (still have not got round to uploading a few recent clips including that one), and I've observed a few July Pegasids here, but so far no PERs.