A custom typeface for Channel Four. Read more here: https://www.dezeen.com/2015/09/30/neville-brody-bespoke-typefaces-channel-4-rebrand-4creative-jonathan-glazer-dblg/ and https://www.typeroom.eu/article/neville-brody-s-channel4-fonts-are-most-talked-about-month

It's not a font.

Just like everything else related to the current Doctor Who brand, it's still Axiforma.

It's a customised version of their custom typeface Sky Text.

It's Copperplate with modified 'F' and 'T'.

This is Barlow Condensed ExtraBold Italic. There are three different versions of Barlow available Google Fonts: Regular, Semi Condensed, and Condensed.

It's the Doctor Who brand font, Axiforma.

It's a custom typeface called Optimistic.

With a filter and the added cross to the 'O'.

It's the Doctor Who brand's font, Axiforma.

If you'd like similar typefaces, I'd suggest:

Gill Facia: https://www.myfonts.com/fonts/mti/gill-facia-mt/

English Engravers Roman: https://www.myfonts.com/fonts/smith-hands/english-engravers-roman/

https://www.behance.net/gallery/88395933/Lapicide-Light

It's part of a custom set of typefaces created for Sky Sports.

Probably based on Euclid.

https://www.underconsideration.com/brandnew/archives/new_logo_and_identity_for_sky_sports_by_nomad.php

It's a custom typeface not available to the public. See also: https://www.itsnicethat.com/news/youtube-sans-typeface-by-saffron-190517

Apple uses a custom, proprietary typeface called San Francisco.