Blue Peter the 50th anniversary) the opening arrangement of the tune was reworked to include elements of "Barnacle Bill" once again. The closing theme for 2008 is the same as opening signature tune. In September 2011, the series returned to using "Barnacle Bill" though with the opening bars and drum roll omitted (along with the "Sailor's Hornpipe") and the traditional closing signature tune not used. 1958–1989: The earliest episodes featured stock footage of a sailing ship under the opening credits. By the late 1960s, Blue Peter's opening sequence featured extracts of that edition's filmed inserts or an event in the studio where
Barnacle (slang) to repair design errors, experiment with design changes or enhancements, or otherwise alter circuit behaviour. Although usually a barnacle-implemented change is incorporated into a new fabrication cycle circuit before production, occasionally there are final-assembly barnacles. In such cases it is determined to be less expensive to add a barnacle to a final, shipping product rather than re-spin the circuit to ship without these interventions left in place. The normal development cycle for electronic hardware contains two main phases. The first phase is the development and prototype phase in which the hardware is first designed (and often simulated using a computer