Let's talk about channels C and F please.

[Mr Hoover]

The Sony set covers the standard European system B channels 2 to 11.
Italy used the same system but the channels went A,B,C etc.with slightly different frequencies but within range of the fine tuner.Italy channel A approximates to European Channel 3.
Exceptions are channel C(83 odd MHz approximately US channel 6) and channel F
on highband.
Wikipedia graphic shows the frequencies.
https://en.m.wikipedia.org/wiki/Tele...AVHF_Usage.svg

I have the same TV made by Sony in Japan
and it has exactly the same tuner knob layout.
The North American Sony equivalent was th ae Sony TV9-51UW.