I am also using MoCA. 5-6 years ago I bought three Motorola NIM-100 adapters on eBay for about $90. I use them to bridge an area where I have ethernet (and cable) to two other rooms where I couldn't easily run ethernet but I do have cable outlets. I also tried powerline but didn't get very good speeds. When I ran a PC to test my transfer speeds with MoCA I was getting about 40 Mbps - which is plenty good for HD video.
Eventually, when I do get around to renovating this part of the house, I will run ethernet but for now this is good enough. I guess the other option would be to move to Wifi since the newer wifi standards seem to be faster and more reliable than the Wireless G standard that was prevalent at the time that I started using my MoCA adapters.