Lena Zavaroni’s single Ma! (He’s Making Eyes At Me) moved down the charts from number 10 to number 13.

BBC Radio 1

The 60 top records of today starts at 16:00hrs

BBC Radio 2

The 20 top records of today starts at 18:00hrs

UK Official Singles Chart

Top 50:   3 March 1974 - 9 March 1974

Differences In Dates

As can be seen the BBC seems to broadcast a week behind the dates given by the UK Official Singles Charts.

I imagine that is because the programme is broadcast on a Sunday and they would not receive the data for the charts until sometime during the week.

Robcamstone

Note On BBC Radio 1

BBC Radio 1's first air date was on 30 September 1967 it was only transmitted on Medium Wave using amplitude modulation it would get an VHF channel that's rollout would start on 1 September 1988, starting with Central Scotland, the Midlands and the north of England.

Note On BBC Radio 2

BBC Radio 2's first air date was on 30 September 1967 it was a replacement for the Light Programme it was transmitter on VHF using frequency modulation in 1973 a subcarrier was added to the transmission which allowed the broadcasting of content in stereo.

Am - FM

At the time of broadcast Radio 1 was only available on Medium Wave so when the BBC broadcasted some of its music programmes it also broadcasted them on Radio 2 VHF so that listeners with a VHF Radio could enjoy a higher quality of sound and if the receiver was a stereo one than could enjoy tracks that were made in stereo as they should have been heard.

Robcamstone