I am able to record the tv video signal off my SlingBox hardware device by using Applian's At-Large Recorder 2.3 software product. Recordings are made in the .asf file format.
To learn more about At-Large Recorder 2.3 go to:
http://www.at-large-recorder.com
If you have any questions you can join the blindreplay mailing list by submiting an email message to:
blindreplay-request@freelists.org
In subject line put: subscribe
I tested all this on a Windows XP Home computer using JAWS 8. Applian fixed the prodcut key registration in less then 24 hours after I told them about it.
SlingMedia makes the SlingBox device. I use the SlingBox Classic.
http://www.slingmedia.com
Tech support: 1-877-467-5464