Saturday, February 20, 2010
| Time | Show |
| midnight |
Paving The Way: The National Park-to-park Highway
Welcome Home |
| 1 a.m. | PBS Newshour |
| 2 a.m. | Nightly Business Report |
| 2:30 a.m. | Tavis Smiley |
| 3 a.m. |
Alan Alda's Scientific American Frontiers
Worried Sick |
| 4 a.m. |
Alan Alda's Scientific American Frontiers
You Can Make It On Your Own |
| 5 a.m. |
Nova
Extreme Ice |
| 6 a.m. |
Nature
In The Valley Of The Wolves |
| 7 a.m. |
History Detectives
Dueling Pistols/evelyn Nesbit Portrait/little Big |
| 8 a.m. |
History Detectives
Preston Brook's Riding Crop/home Of Lincoln Assass |
| 9 a.m. |
Alan Alda's Scientific American Frontiers
Worried Sick |
| 10 a.m. |
Alan Alda's Scientific American Frontiers
You Can Make It On Your Own |
| 11 a.m. |
Nova
Extreme Ice |
| noon |
Nature
In The Valley Of The Wolves |
| 1 p.m. |
History Detectives
Dueling Pistols/evelyn Nesbit Portrait/little Big |
| 2 p.m. |
History Detectives
Preston Brook's Riding Crop/home Of Lincoln Assass |
| 3 p.m. |
Alan Alda's Scientific American Frontiers
Worried Sick |
| 4 p.m. |
Alan Alda's Scientific American Frontiers
You Can Make It On Your Own |
| 5 p.m. |
Nova
Extreme Ice |
| 6 p.m. |
Nature
In The Valley Of The Wolves |
| 7 p.m. |
History Detectives
Dueling Pistols/evelyn Nesbit Portrait/little Big |
| 8 p.m. |
History Detectives
Preston Brook's Riding Crop/home Of Lincoln Assass |
| 9 p.m. |
Alan Alda's Scientific American Frontiers
Worried Sick |
| 10 p.m. |
Nature
In The Valley Of The Wolves |
| 11 p.m. |
History Detectives
Dueling Pistols/evelyn Nesbit Portrait/little Big |












