Season 5 footage courtesy of ThomasTankMerchandise.
Deleted shot of the Signalman from the Thomas music video: Sounds.

Themes:
George the Steamroller Themes (Carson)
Skarloey Railway Ambient (Carson)

SFS and Ambience:
George's Whistle (Gw Shunter)
Skarloey Quarry Ambience (TheGermanOfSodor)
Brendam Coast (2003 PC Game: Thomas Saves the Day)
Percy's Whistle (1999 PC Game: The Great Festival Adventure)
Countryside Ambience (TheGermanOfSodor)
Thomas' Whistle (1999 PC Game: The Great Festival Adventure)
Rolling Stock (Gw Shunter)
Crash (Gw Shunter)
Chickens (Sound Ideas)
Knapford Switching Yard (2003 PC Game: Thomas Saves the Day)
Duck's Whistle as Gordon's (Jim522)
Slap (CakeRollBakery)