Yes, it is choppy! I have the VLC player installed which appears to have allowed me to use my PlayOn app to watch TV. It can be quite slow loading but I do get a some of the US TV sites without using VPN or proxy (TV.com, the CW, TBS, National Geographic, PBS, The Walking Dead episodes,and TVLinks which has a lot of the most popular shows on right now). Doesn't look good for using the VPN to get Hulu etc. unless Kobo updates their firmware.
My VPN provider has pretty much tried everything they know of to get it to work and it just doesn't...