Editing List of BBC test cards (section)

==Test Card E (later Test Card C)==
[[File:Testcard E2.jpg|thumb|upright=0.8|Modified Test Card C]]
Test Card E was a television test card designed in 1964 and made to accommodate the 625-line system on [[BBC2]], as opposed to the 405-line system of Test Card D.<ref name=":1" /> However, Test Card E lasted for only four and a half days before being withdrawn.<ref name=":2">{{Cite book |last=HERSEE |first=G. |url=https://www.worldradiohistory.com/UK/BBC/BBC-Books/bbc_monograph_69.pdf |title=BBC Engineering Department Monograph, Number 69 |date=September 1967 |pages=7}}</ref> Test Card E was thereafter replaced by a modified version of Test Card C, which lasted on BBC2 until December 1964, the illustrated version of Test Card C shown here replaced the first version, and was discontinued in September 1969, and when the colour Test Card F was introduced in July 1967, Test Card C was only shown between 9.00 and 9.58 a.m. 

A version of the modified Test Card C also aired on BBC1 and BBC 2 from November 1969 (with the BBC1 and BBC 2 logos replacing the "BBC2 625 LINES" caption). This modified Test Card C also had versions where Reduced Power also appeared in the ident box. This version of Test Card C was last used in February 1975, and was only ever generated locally at the transmitter. Test Card E did however see later usage by [[RTÉ]] in Ireland and [[Rádio e Televisão de Portugal|RTP]] in Portugal alongside Test Card D.