It is possible to test URL by clicking on icon, while testing url is shown two arrows in circle (7th attached image). In special column is by default blue question mark.

It is possible to select mutiple urls, after that is possible to change settings for multiple urls.

Below playlist is property grid, when can be changed various settings for select url(s). There is Channel name, Url, Protocol, Filter url and special column. On first attached image is main screen with loaded playlist. After enabling plugin in Plugins section, you can edit playlist or set default parameters for several protocols. The TV plugin is available from TV-Server Configuration tool. It is not intended as a standalone plugin, but required by OnlineVideos or TvService. Apple HTTP live streaming (M3U8 playlists).Adobe HTTP Dynamic Streaming (HDS, F4M manifest).Adobe Real-Time Messaging Protocol (RTMP).The MediaPortal IPTV filter and url source splitter is a directshow source filter that enables direct playback for many protocols and file types used in online video sources in the internet.

Muckys mediaportal url