Channel plus is a free streaming service available to LG smart TV owners. One of the better channels is Binge Free TV (256) The current lineup includes:

Roseanne (season 1, 20 episodes)
3rd Rock from the Sun (season 1, 20 episodes)
Unsolved Mysteries with Robert Stack (season 1, 20 episodes)
The Prisoner (complete run, 17 episodes)
Space: 1999 (season 2, 20 episodes)
H.G. Well's The Invisible Man (20 episodes)
Could it be a Miracle (20 episodes)
Cracker (complete run, 16 episodes)
Colonel March of Scotland Yard (20 episodes)

Click here (https://www.lg.com/us/support/product-help/CT10000018-20150552982846-channel-setup-and-management) for more info on Channel Plus which includes a full list of the channels offered. Some of these may be available through Roku or other streaming services.