From The Infosphere, the Futurama Wiki
|Location||Probably Los Angeles|
|First appearance||"Lrrreconcilable Ndndifferences" (6ACV11)|
- Not to be confused with Channel 4.
- The fourth root of four is approximately 1.41421356, so Channel 4√4 could be called Channel 1.41421356.
- Channel 4√4 being a parody of Channel √2 is likely considering 4√4 and √2 are equal numbers.