# Learn digital signage and narrowcasting

Short answers first, details after, every page dated.

*Verified 2026-10-25 · https://roitechnologies.net/learn/*

> **Short answer:** Signage ROI explains digital signage and narrowcasting in plain language: what it is, how it works, what it costs, how to choose software and what to put on a screen. Each guide starts with a short answer and shows the date it was last verified.

- [Can you use a smart TV for digital signage?](https://roitechnologies.net/learn/can-you-use-a-smart-tv-for-digital-signage/): A smart TV can run digital signage through its browser, a stick or a mini-PC. What each route needs, the trade-offs for all-day use, and how Screenbird fits.
- [Digital signage content ideas for every kind of screen](https://roitechnologies.net/learn/digital-signage-content-ideas/): 24 digital signage content ideas for shops, restaurants, gyms, offices, schools, clinics and apartment buildings, with what each shows and where the data comes from.
- [Digital signage FAQ](https://roitechnologies.net/learn/digital-signage-faq/): Digital signage FAQ with 30 short answers on narrowcasting, cost, hardware, content, scheduling, managing screens and fixing common problems. Verified 2026-10-25.
- [Digital signage glossary](https://roitechnologies.net/learn/digital-signage-glossary/): A digital signage glossary with 45 terms used in narrowcasting, from CMS and playlist to HDMI-CEC, proof of play, nit and pixel mapping, in short exact definitions.
- [Digital signage ROI: how to calculate it](https://roitechnologies.net/learn/digital-signage-roi/): How to calculate digital signage ROI: costs, print and ad savings, staff time and extra sales, plus a worked four-screen example with every assumption stated.
- [Digital signage vs a TV with a USB stick](https://roitechnologies.net/learn/digital-signage-vs-tv-with-usb/): A USB stick on a loop is the simplest way to put content on a TV. What it can and cannot do next to digital signage software, and when to make the switch.
- [How does digital signage work?](https://roitechnologies.net/learn/how-does-digital-signage-work/): How does digital signage work? The path from upload to screen, what the player does, what happens when the internet drops, and how screens switch on and off.
- [How much does digital signage cost?](https://roitechnologies.net/learn/how-much-does-digital-signage-cost/): How much does digital signage cost? Software, player, screen, installation and content costs, and what to ask a vendor. Screenbird costs EUR 12 per screen per month.
- [How to choose digital signage software](https://roitechnologies.net/learn/how-to-choose-digital-signage-software/): How to choose digital signage software: eight criteria with one question per criterion to ask any vendor, from features and players to price and trial.
- [Digital signage resolution and orientation](https://roitechnologies.net/learn/screen-orientation-resolution-and-aspect-ratio/): Portrait or landscape, 1080p or 4K, 16:9 or 9:16: how to match digital signage content to the screen, plus the four scaling modes and practical tips.
- [What is digital signage?](https://roitechnologies.net/learn/what-is-digital-signage/): What is digital signage? A plain definition, the four parts of a system, the main screen types and how small organizations use it, checked 2026-10-25.
- [What is narrowcasting?](https://roitechnologies.net/learn/what-is-narrowcasting/): What is narrowcasting? Its meaning, where the word comes from, how it differs from broadcasting and digital signage, and how to start. Checked 2026-10-25.
- [Display Excel, Google Sheets, Power BI and a calendar on a TV](https://roitechnologies.net/learn/what-to-show-on-digital-signage/): What you can show on a digital signage screen and how: Excel, Google Sheets, Power BI, calendars, slides, Canva, Instagram and websites, with a guide for each.