As with any other stream:
1. Play your stream;
2. Find the URL with URL finding software;
3. Paste the URL into the stream recorder (if URL finder is not built-in into your stream recorder).

Using HiDownload to record MMS stream from TVants:
1. After getting the URL with URL finding software, copy it to the clipboard. Or just copy it from one of the previous posts. Note that the URL may change in the future so it is better to learn getting stream URLs with URL finding software.
2. Click the "Add" button of HiDownload. The URL should be pasted into the URL field automatically (paste it manually if not).
3. Select "Windows Media" as a download mode.
4. Mark the "Download immediately" checkbox.
5. Click OK.

Enjoy!