can rtsp streams withou without .sdp extension works on webTv apps/widgets?

According to

document in the

Why is the page or DB for WebTV closed ?
And in the zip file provided the pdf document says "

"The link to the video feed or file to be played (FLV). Supported protocols are: - RMTP (for streaming) - HTTP (for progressive download

The template offers a possibility for providing separate URLs for a variety of streams. The optimal one is selected automatically according to the current network bandwidth, based on the bitrate attribute of the link element. If the setting “DYNAMIC_STREAMING_AUTO” is on, the stream will be switched to higher/lower quality when the network bandwidth changes (e.g. moving from 3G to WiFi or back) "