I have 5.00.15 and it's Ok, but I have turned updates off. If 5.00.20 is better I might risk updating. For a start I would prefer my options back on the left of the TV, I don't like them on the right. Secondly, some people say that the browser runs out of memory, I haven't used the browser much, I just watched a cat video, and didn't run out of memory. If anything is better about 5.00.20 please let me know.