The final syndicated commercial radio chart show was broadcast on 30 December 2018 by Marvin Humes and Kat Shoob.
Jensen would record trailers to run on local stations during the week which famously started with the words "Hi Chart Fans!!".
The Network Chart Show aired on Independent Local Radio (ILR) stations using the transmission circuits of Independent Radio News, which meant it was originally broadcast in mono in most areas (some stations near to the London area were able to receive Capital on FM well enough for 'off air' rebroadcast).
Eventually, on Sunday 21 October 1990, the programme was extended to start following the 4 pm IRN bulletin, with the chart expanded to a Top 40 – although not all of the stations took the extra hour to begin with.
The chart was owned by Association of Independent Radio Contractors (AIRC)–the trade body for ILR stations.
Airplay statistics were factored in by all Independent Local Radio stations providing which playlist (A, B, or C) the current releases were on.
More weight was given to the larger stations at the time, such as Capital (17 per cent), BRMB, Clyde, GWR, Metro, and Piccadilly.
[9] MRIB's Network Chart was published in music publications NME, Melody Maker,[10] and Sounds,[11] as well as on ITV's ORACLE teletext service.
In compiling the chart MRIB employed a sliding scale, meaning that for the lower reaches of the Top 40, airplay counted almost as much as sales.
This had also been the case with the Record Business magazine chart used by ILR in the late 1970s and early 1980s, which also did not include data from the more family-friendly shops.
It ran for just under a year and was produced by Tyne Tees Television, but was often beaten in the ratings by rival programmes on other channels such as EastEnders.
It featured a selection of the singles, albums and music videos charts, as well as interviews with some of the artists who had big hits that year.