Many hotels receive signals from satellite (DirecTV or Dish) and then re-broadcast them over coax to internal channel numbers that they have programmed into the TV sets. These are not standard lineups at all and will most likely not work at all with any guide data from TiVo.
Most of these hotels will have only the SD or HD version of a channel. With your SD box, you will only be able to receive the SD channels. The channel numbers will probably not match what's on the TV in the room, and they certainly won't match a Dish lineup.
If you call TiVo, they may be able to set up a guide location just for that hotel, if you give them details about which station is being received on each channel. I have heard of TiVo doing this for extended stays in the past. But there's nothing you can do to receive any of the HD channels, and since most hotels use really weird sub-channels internally to send HD content, I doubt TiVo could make a guide for them anyway.
If you want to receive local channels, you would need a digital tuner box that can tune them from an antenna, and then plug that into the TiVo and have the TiVo control the box. The time and expense to get this working seems like a waste, when you can go buy a Roamio OTA for 50 bucks.