I grew up with this as my only source of TV in the 80s and 90s (we were too far from town and lived in the mountains to use local over the air tv). We had an 8' dish though and it must have weighed well in excess of 26lbs so yes your dish is quite light. We never seemed to have issues finding channels with something to watch and were able to pickup news, cartoons (very important), shows, and movies. The main issue was that the channels had to be scanned manually then. There were two sets of numbers, the first number if I remember correctly would physically rotate the dish outside then the second number would scan the channel options available available at that dish angle. This took a lot of time and ended up with us writing down the common locations for shows that we wanted to watch. Today I would hope there is an auto-scan feature that would allow you to just scan the channels to see what you're able to receive and store those.
Unfortunately I haven't used this system in more than 10 years so I'm not very knowledgeable on what the system is like to use today. Hopefully something in my post was useful to you or someone else reading through.