Conversation so far:
what did Simon & Garfunkel do in the studio?
The duo's fourth studio album, Bookends, was recorded in fits and starts over various periods from late 1966 to early 1968.
The duo were signed under an older contract.
did they record any other albums in the studio?
Simon & Garfunkel took advantage of this indulgence, hiring viola and brass players, as well as percussionists.
The record's brevity reflects its concise and perfectionist production.
did something happen in 1967?
The team spent over 50 studio hours recording "Punky's Dilemma", for example, and re-recorded vocal parts, sometimes note by note, until they were satisfied.
did the albums sell well?
For Simon, Bookends represented the end of the collaboration and became an early indicator of his intentions to go solo.
what record label was used for Bookends?
The duo were signed under an older contract.
did something happen in 1968?
"Fakin' It" was issued as a single that summer and found only modest success on AM radio; the duo were much more focused on the rising FM format.
did they record another song in 1968?
In January 1968, the duo appeared on a Kraft Music Hall special, Three for Tonight, performing ten songs largely culled from their third album.
did anything else happen in 1968?
Bookends was released by Columbia Records in April 1968.
In an historical context, this was just 24 hours before the assassination of civil rights movement activist Martin Luther King Jr..
did they make any other tv appearances?
CANNOTANSWER.
were any of their songs used in a movie or tv show?
Davis had predicted this fact, and suggested raising the list price of Bookends by one dollar to $5.79, above the then standard retail price.
Are there any other interesting aspects about this article?
Simon instead scoffed and viewed it as charging a premium on "what was sure to be that year's best-selling Columbia album".

Question: what was the Columbia album?
Self-contained rewrite: What was the Columbia album?