Well, it is a Mark Fenton production. He gratuitously overstates things in it.
In Britain, the
mechanical television was invented. By 1930 it had been surpassed by the
electronic television of Farnsworth and RCA in the US and abandoned entirely. So, while an early invention in that field, it failed to work sufficiently well to be considered a progenitor of modern television as it was mechanical.
The computer is another dubious claim. In the early 20th century, many nations in Europe, and the US too, were producing various types of electro-mechanical analog computers. These could be quite sophisticated, but ultimately too slow and bulky to compete with digital, all-electronic computers that would follow. The revolution in electronic, digital, computers came from MIT's Lincoln and Rad Labs in the form of Whirlwind, the progenitor of the SAGE system.
The major breakthrough that made fast electronic data storage and processing possible was magnetic core storage as shown here.
As for the WorldWide Web, that came out of CERN in Switzerland almost entirely.
So, Felton gets that wrong in part and overstates things in part. He gets more wrong or simply over-generalizes elsewhere. It's like watching the History Channel...