At the start of episode 1 of The Romans (1964), the TARDIS lurches violently and the floor tilts crazily, throwing the Doctor and his companions to the floor, as the TARDIS topples off the edge of a cliff and tumbles into a ditch.
In the 1968 serial The Web of Fear, episode 1 begins with the TARDIS tilted over on its side in the time vortex, lurching and off balance, because the doors have been opened in flight: the Doctor and his companions struggle to avoid being ejected through the open doors due to the sloping floor.
In The Curse of Peladon in 1972, the TARDIS lands half way up a mountain, and begins to topple over the edge of the cliff in a storm. The Doctor and Jo have to struggle against the tilted floor to escape , in the moments before it falls into the chasm.
In Castrovalva (1982), as mentioned, the TARDIS lands on its side in episode 2 (at a 45 degree angle), because the newly regenerated Doctor is ill, leaving Tegan to attempt the landing. In the novel:
Tegan picked herself up from the floor, which was now
leaning over at a crazy angle...