the HOT List A Healthy April for National TV Ad Spend, Says SMI By Adam Jacobson - May 31, 2022 0 Facebook Twitter WhatsApp Linkedin Email The health of the linear TV advertising marketplace is improving, the latest data release from Standard Media Index (SMI) indicates. April saw mid-single-digit growth, whereas March 2022 was flat compared to the same period in 2021. Please Login to view this premium content. (Not a member? Join Today!)