A curio at best. I've always found Hitchcock to be vastly overrated but in this case there's no discernible trace of Hitchcock in the entire length though there are reports that he was responsible for the dire links in which Gordon Harker is attempting to 'tune' in a television set in his home (in 1930 yet)to a live broadcast emanating from Elstree studios in Borehamwood, Hertfordshire, a link in which the punch line - he finally gets a crystal clear image in the last seconds of the show - can be seen being telegraphed from John O' Groats. It's mostly notable for observations such as that Tommy Handley was already a sufficient name in 1930 to actually MC the show and didn't emerge fully-formed in ITMA. There are songs from the likes of Ivor Novello and Vivian Ellis, both clearly having off days, and four numbers are shot in two-colour tint.
Review of Elstree Calling
