Who has seen these two films: 'Jonathan of the bears' and 'Knights of the Quest'.. do you know where the hell they can be found?

I love these films and haven’t found trace of them since they came out and watched them the last time. a shame. perhaps on some site in streaming…???
by the way, the directors are Sergio Leone and Pupi Avati.. you who know these can imagine the feeling these films give..