The "nuerversal" remotes are difficult to find due to the nuclear element power supplies they require....
Have you considered the TiVo slide pro? It's a learning remote which can be programmed to handle both most TV & AV equipment and by the learning function, handle your hdmi switcher. It's $49 at the TiVo store.
I'm sure others will chip on esp for the Harmony remotes but they are more expensive.
How many devices other than TiVo, tv and hdmi switcher do you want to control?