Yep. Looks like little to no recirculation to your overflow reservoir. It should be a recognizable stream. If your thermostat is open...you should be circulating. Pull that small hose off (crimp it first) and double check if the opening is actually open. They can melt closed over the years but still look okay. If the pathway is clear, let your engine get up to operating temp (HOT) and open up your heater core (turn the heat on) while the engine is running. Squeeze the top rad hose repeatedly, to make sure the entire system is "burped". At this point, you should see coolant returning to the reservoir.....assuming the water pump is doing its job as well as your thermostat. The pumps in 16v's are usually pretty fool proof so my guess is a bad stat, it's still not "burped" 100% or overflow tank that's melted enough to cause blockage....although from your video, it looks to be in fairly decent shape.