Services are automatically pulled from muxes and can be mapped to Channels.

The columns have the following functions:

Play
  Opens a playlist (M3U of XSPF, depending on your startup options) to allow you to stream this service to another application, e.g. to watch a channel in VLC.
Details
  Display details on this service, e.g. PID, streams, audio/video CODECs, languages, etc.
Enabled
  Whether or not this service is available for use
Automatic Checking
  Check for the service presence. If service is no longer broadcasted, this field will become as "Missing In PAT/SDT". The check can be also disabled for given service using this column.
Priority
  Define priority (range 0-10) for this service. The higher value means more preferred. Note that this value is _added_ to the input (tuner) priority. Take this in account when you set the input priorities.
Channel
  The channel to which the service is mapped
Service Name
  The name of the service, detected when the service was discovered
Encrypted
  Whether or not the service is scrambled
Network
  The network on which this service resides (i.e. whether it's a cable channel or a terrestrial one)
Mux
  The mux which carries this service. This is typically the frequency of the carrier signal in kHz, with polarisation (H or V) as applicable.
Service ID
  A unique identifier for this service within this mux/transport stream.
Local Channel Number
  Channel number as assigned by the broadcaster.
Provider
  Any supplied provider string, e.g. where multiple broadcasters share a platform, such as for free-to-air and pay TV.
CRID Authority
  The group responsible for the Content Reference Identifier for this service. This is effectively a URL/URI to an authoritative source for programme data (e.g. series link).
Service Type
  The service type flag as defined by the DVB specifications (e.g. 0x02 = radio, 0x11 = MPEG2 HD TV, 0x19 = H.264 HD TV)
Pref. CA PID
  The Preferred Conditional Access Packet Identifier. Used for decrypting scrambled streams.
Lock Pref. CA PID
  The locking mechanism selection for The Preferred Conditional Access Packet Identifier.
  Off
    Automatic Preferred Conditional Access Packet Identifier selection.
  On
    Keep Preferred Conditional Access Packet Identifier selection (no automatic modifications allowed).
  Only Pref. CA PID
    Filter mode - use only Preferred Conditional Access Packet Identifier for the streams decryption.
Character Set
  The character encoding for this service (e.g. UTF-8).