A few great watchables on YouTube.

Late Glacial and Mesolithic in the UK | Kristian Pedersen (Edinburgh University) lecture

This lecture focuses on the English–Scottish border region but provides an excellent overview of knowledge, challenges and opportunities. As well as tying material culture into climatic change events, Kristian also provides definitions and explanations for some material culture nomenclature in a European context, like Hamburgian, Creswellian, etc. | 48 min Jan 2011

Sea Level Rise: 13,000 bp to 5,000 bp in the British Mesolithic | TemporalMapping.org
Animated output of paleoclimate model at 30 arc-second, 20 year resolution, 200 years per second. Sea level is calibrated to Global Sea Level estimates with data points at 1000 year intervals. This model does not yet account for isostacy (land rise), or glaciation | 48 sec (no audio) Jun 2011

810 Radiocarbon Dates of the British Upper Paleolithic/Mesolithic | TemporalMapping.org
Animation visualising calibrated radiocarbon dates from the Council for British Archaeology’s Radiocarbon Database | 40 sec (no audio) Dec 2011

Seabed Prehistory | Wessex Archaeology
Archaeologists have created a 3D visualisation of a whole prehistoric landscape now submerged 20 metres under the English Channel, and 8 miles off the West Sussex coast. This is how they believe it may have looked over 8000 years ago, based upon environmental and geophysical surveys; an estuary populated by families living from the river, sea and land; a river surrounded by salt marsh and forest | 4m 16s (with audio) 2006