Plans to take BBC Three off air - making it an online-only channel - have been provisionally approved by the BBC Trust.
The body says the controversial move would save €42 million a year.
Bosses' proposals to show more programmes on iPlayer before they are broadcast have also been recommended for approval.
The BBC Trust rejected the idea of a BBC One '+1' channel, saying it ignores the trend towards online viewing and could negatively impact the market.
The group does however say it is in favour of longer hours for children's service CBBC.
The Trust has stressed the decisions are provisional, with a final decision due in Autumn.
Speaking about the decision to move BBC Three online, BBC Trust chairperson Rona Fairhead said they "need to make sure the BBC isn't going to lose an important part of its audience. We are setting conditions to help make sure this doesn't happen, and we want the BBC to present us with more detail before we make our final decision on these plans.
"We want to see a clear plan for how BBC Three will take viewers with it online so that the audience won't miss out on the shows they love. We need guarantees that for those who aren't online, or prefer a traditional TV experience, there will be space on BBC One and BBC Two for the type of programmes that appeal to BBC Three’s audience," she added.
How we reached our provisional decision on BBC Three, BBC One +1, CBBC and iPlayer http://t.co/kRrDzvp6DN pic.twitter.com/GgwrbFEl0S
— BBC Trust (@bbctrust) June 30, 2015
