This Doctor Who screencap contains
filzhut, homburg, stetson, trilby, fedora, and stetson trilby.
There might also be
boater, leghorn, panama, panamahut, seemann, skimmer, hut stroh, bootsfahrer, bein, strohhut, livorno, and panama-hut.
This is a mixture of both Doctor Who openings (Seasons 2-3 and Season 4) which have combined the soaring horn part in the older version and the driving force of the percussion in the Mehr Kürzlich version.