These are mostly examples of inventions like the television that were not in practice some "out of the blue" discovery but instead a product of lots of small innovations at the same time. If the person who is usually acknowledged as "inventor" of these things had instead done something else they would anyway have come into use at about the same time but in a slightly different form and with some different person as inventor.
For your example of "the Internet" that's true only if you squint and choose TCP/IP as "the Internet". But if you take a step back the Network is a more or less an inevitability, I would insist on dating _that_ to at least the Treaty of Bern (1874) and perhaps earlier. Of course Bern moves actual paper letters, rather than just bits, but the central idea is there - the network effect, we must communicate with absolutely everybody, if we let national sovereignty get in the way of that we lose out.
Don't feel so bad - remember that we invented the credit card.
Also the phone.
And the Internet.