If you have Cygwin, you can use hulu.sh script
Code:
$ hulu.sh
Press enter after video starts
Printing results
0 400_h264 limelight
1 400_h264 level3
2 400_h264 akamai
3 1000_h264 limelight
4 1000_h264 level3
5 1000_h264 akamai
6 650_h264 limelight
7 650_h264 level3
8 650_h264 akamai
9 480_vp6 limelight
10 480_vp6 level3
11 480_vp6 akamai
12 400_h264 limelight
Make choice. Avoid level3.
3
+ rtmpdump -W http://download.hulu.com/huludesktop.swf -a 'a2461/o23?as=adobe-hm
ac-sha256&av=1&te=connect&mp=545/60050545&et=1346596092&fmta-token=9beaa1fa97598
a24e38866f046ea9d80bfd75d859630a5419679616ac032d5b3&hgt=OZU7Pvs7j27-nhteNno7wu65
AP_yBvVNgBi78q-N59r2HbjHI0TW6H4xqSkm4TtHMkGYTqSJlL3FF_plaFByexDSrUhgmx1ii4SVddbQ
Mu_8r3U4YqvHOXPThaZXlh6QS9p1cXZjLZvYXmcdjJS2oXXJZ4Nx1UzCIb9LKunHXdc8uLBn8BQ0vEN9
QW8ayDUI1Lpn-yX8C2x4yQa897_cmWWJKdInP3RD6SxMQub8K0tEMAUvGun3sAdos5EfwPeHkPWrxiCa
tOmoGfYXT5SgVjwMVXB9_UYOfJfxb048scg=&hgt_ver=331370278' -o out.flv -r rtmpe://hu
lu-545.fcod.llnwd.net/a2461/o23 -y mp4:545/60050545/agave50274698_9697355_H264_1
000.mp4
RTMPDump v2.4-35-ge0056c5
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
WARNING: HandShake: Type mismatch: client sent 6, server answered 9
INFO: Connected...
Starting download at: 0.000 kB
INFO: Metadata:
INFO: duration 1313.46
INFO: moovPosition 36.00
INFO: width 720.00
INFO: height 400.00
INFO: videocodecid avc1
INFO: audiocodecid mp4a
INFO: avcprofile 100.00
INFO: avclevel 30.00
INFO: aacaot 2.00
INFO: videoframerate 23.98
INFO: audiosamplerate 22050.00
INFO: audiochannels 2.00
INFO: tags:
INFO: ©too Hulu v1.10
INFO: trackinfo:
INFO: length 31520489.00
INFO: timescale 24000.00
INFO: language und
INFO: sampledescription:
INFO: sampletype avc1
INFO: length 57923584.00
INFO: timescale 44100.00
INFO: language und
INFO: sampledescription:
INFO: sampletype mp4a
15277.001 kB / 265.26 sec (20.1%)