I am considering buying a 921 but should I wait for the 942. The price difference is not an issue. 3 recordings simultaneously sounds great. I hope it won't have bugs like the first 921 units. Please give an opinion.
If you want to use 3 tuners period - do not buy the 921. If you don't need OTA, go for it. It really works great assuming you don't need OTA (also meaning you don't need networks in HD)