Here is some information that might help, if you lower the bitrate, it would not eat up your limit as fast...
not sure if this works with your model but many people use the roku's hidden data rate menu inside the system hidden menu ( home - 5x , back - 3x, forward - 2x, bit rate override, and you have to re-set it after every firmware update ) ... here is a post that talks about it: »
forums.roku.com/viewtopi ··· 1#107671It appears the hulu channel (app) ignores all settings (theirs at »
www.hulu.com/profile/settings and the hidden bitrate menu) so I am not sure what to say about hulu, sometimes there is an onscreen quality you could set to low or medium.