Terry-Thomas was born Thomas Terry Hoar Stevens, and originally his professional name was Thomas Terry; but people kept asking him if he was related to the stage actress Ellen Terry, so he decided to change his name once more to Terry-Thomas. Apparently, he said that the hyphen represented the gap in his teeth.
I confess that I bought this collection because it includes 'School For Scoundrels' in a widescreen format, and, of course, because I like Terry-Thomas and Ian Carmichael. Effectively, what you have here is 3 Terry-Thomas films and 3 Ian Carmichael films in two of which T-T has a prominent role and in the third ( 'Brothers In Law' ) a featured role which lasts for around 10 minutes.
I have never really thought of Terry-Thomas as a leading man, but rather a brilliant character actor the likes of whom, along with many of his contemporaries, you will never see again.
I recommend this collection wholeheartedly, and I applaud Optimum for bringing out such excellent prints of these wonderful films.
For the record, 'His And Hers', which was made in 1960 and indeed starred Terry-Thomas, is not in this collection as stated, but 'Brothers In Law' is.