Bolt vs Roamio OTA tuners

I am currently running both the Bolt and Roamio OTA on my OTA antenna. The are connected exactly the same; sharing a single 2-way splitter at he end of the antenna cable. Unfortunately, we have on really bad OTA channel; CBS2-Chicago (WBBM-TV) that has always teetered on the edge of reception. The Bolt periodically cannot pickup a signal; the Roamio OTA has absolutely no issues.

So, based on my observation, the Roamio OTA has the better OTA tuners.