| Mobile Site | Caption Comp | Monthly Poll | Sudden Death | Book Reviews | Game Reviews | Colour Key | Statistics | Cookie Usage |
| Full EntryAll Images | Science and technology |
Guardian of Forever The guardian could apparently show scenes from any era or place.1 |
| Yellow text = Canon source | Green text = Backstage source | White text = DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TOS | 1 | The City on the Edge of Forever |
| Series: | TOS Season 1 (Disc 7) |
| Source: | The City on the Edge of Forever |
| Copyright Graham Kennedy | Page views : 10 | Last updated : 1 Jan 1970 |
