- Plank left Signal to set up Trent Radio broadcasting as Focal Radio which was bought out by local businessman Mo Chaudry from administration.
- Usually if there is any " left signal " it's considered as a free left turn when the signal is blinking orange ( amber ) or bright green.
- All sound was monophonic until introduction of the stereo LP in 1958, when sister stations " simulcast " the left signal on AM, the right on FM, requiring audiofans to set up two receivers.
- If there isn't any special left signal, it is generally considered as no free left . Free lefts are usually separated from the main road by a divider, they are also usually allowed if the opposite traffic cannot U-Turn into the lane that your trying to merge.