As part of the Presenter Release Licence, the lecturer confirms that their lecture does not infringe anyone else’s intellectual property rights. This does not necessarily mean that it includes only material created by the lecturer. There may be material which is out of copyright due to its age, used with permission, or used under one of the so-called Fair Dealing exemptions of the Copyright, Designs and Patents Act 1988.
The conditions under which this is the case are numerous and covered by the Copyright, Designs and Patents Act 1988. Two categories of exemption are used for ‘illustration for instruction’ and use for ‘criticism and review’, and both these potentially covering use within lectures. In all cases, it is important to acknowledge sources of third party material.
You may also use material under a broad, general licence like a Creative Commons licence.
If you are in any doubt about the content of your lectures, please email firstname.lastname@example.org