I have not found
GetFLV to work. At least the trial version does not work for Hulu downloading.
The website shows a single row to select for downloading. But when using it in the trial, it lists a dozen rows - you can't tell which one is the right one for the Hulu video that is playing.
They also do not let you test a Hulu video during the trial. You get a message that the file is larger than allowed during the trial.
And they do not respond to emails abut the above two problems.