Sheila McClennon introduces her selection of highlights from the past week on BBC radio. Nature - Radio 4 Scott Of Slimbridge - Radio 4 David Attenborough's Life Stories - Radio 4 You're Entering The Twilight Zone - Radio 4 Inside The Bermuda Triangle - Radio 4 Titter Ye Not - Radio 2 The A-Z Of Dr Jonhson - Words, Words, Words - Radio 4 The House I Grew Up In - Radio 4 A River Runs Through It - Radio 4 Great Lives - Radio 4 Dreams From My Mother - World Service That Mitchell And Webb Sound - Radio 4 Halfway To Hollywood - Radio 4 Tom Jones - From The Valleys To Vegas - Radio 2.