Your video was very informative, and thorough. Thank you for taking the time to present what you are doing. I will try and be as thorough.

Firstly, I would suggest you check your squat form. Your knees should never go in front of your feet, your torso should be upright. The easiest way to tell if this is happening, is stand in front of a wall with only your feet touching. Squat to your full range of motion like this (up and down). Nothing but your feet should touch. This is helpful, because it shows where you are moving to compensate for tightness. From what I can see in your video both your head and quite possibly your knees will hit the wall.

Secondly, your couch stretch is not done properly. This stretch should help your hip mobility, and stretch out your quadriceps, as well as a host of other wonderful things. Your legs are currently at about 90 degrees with your leg up. Instead you should be in a low lunge position with your foot up, as if you are trying to bring your hip to touch the ground. Keep your upper body UPRIGHT, and continue to lower your hip. DO NOT MOVE YOUR KNEES BEYOND YOUR FEET. Just like in a lunge or in a squat this is a huge no-no. Keep your hips square.

You indicated that you forgot to add your hip stretches, but your pigeon that I saw was nice. :)

Basic flexibility would mean that standing completely upright on one leg (not hinging forward at all) you should easilly be able to knee yourself (with the leg you are not standing on) with some force in your chest (nipples), and your shoulders.

From what I can tell your hips lack a significant degree of mobility. If this is your stretching routine, I would suggest you change it to achieve your goals. I think your next few videos will be very helpful to determine what you need to work on.

I hope this was helpful, please let me know what you would like me to clarify or add.