Next time be more specific in your posts.

If you like to learn wget you can use its manual.

wget is one of the many progams that can download http files.

P2P TV Recorder uses localhost (127.0.0.1) URLs so I don't really know how you were using it.

mnet streams are discussed in the following threads.
Recording music videos from mnet.com (p3mxv:// .wmv)
Can't figure this out (mnet.com), are you willing to try?